Dr. John Goold
Associate Professor, Physics
Email gooldj@tcd.ie Phone3531896 4114https://www.qusystcd.com/Biography
Following a PhD from University College Cork in 2010 in the Group of Thomas Busch, John moved to the Centre for Quantum Technologies at the National University Of Singapore. In August 2010 he was awarded an INSPIRE Marie Curie Fellowship which he undertook at the University of Oxford where he was hosted in Vlatko Vedral's quantum information theory group. In August 2013 he moved to The Abdus Salam Centre for Theoretical Physics in Trieste Italy as a UNESCI research scientist and remained there until October 2017 where he moved as Research Assistant Professor to Trinity College Dublin. He was awarded an SFI Royal Society University Fellowship for his project on Thermodynamics for Quantum Technologies. He was then awarded a Starting Grant from the European Research Council and founded his own thriving QuSys research group focusing on the thermodynamics of quantum technologies and the fascinating problems in non equilibrium statistical mechanics that emerge there. Since arriving at TCD he has not only obtained over 5 million euro of the most competitive of research funding (ERC, Royal Society, SFIEPRSC, SFI Frontiers for the future) but also has attracted excellent postdoctoral researchers to work at Trinity including several Marie Curie Fellows. His group has received international recognition with regular invites to workshops, conferences and schools. The QuSys group he started in 2018 has grown to 16 members in 2021. John is committed to ramping up Ireland's efforts in quantum technologies and has introduced quantum information theory into the physics syllabus at Trinity which blends cutting edge research into his teaching practice. His ambition is to put Trinity College Dublin at the forefront of Irish efforts in quantum science is reflected in his successful bid for funding an MSc in Quantum Science at Technologies as part of TCD's recent application to the HEA under the Pillar 3 of the HCI. This course, which he designs and directs, started in September 2021. This year John has also formed formal collaborations with both Microsoft and IBM Ireland. This includes the establishement of a female only scholarship scheme for entrance to the MSc and 2 PhD scholarships in the field of quantum simulation from Microsoft. John is an independent scientist, interested in the interface of thermodynamics and quantum mechanics and in particular on how thermodynamic behaviour emerges in complex many body systems. He has worked on a number of different areas including ultra cold atoms physics, statistical mechanics and quantum information.
Publications and Further Research Outputs
 Campaioli, F and Pollock, F A and Binder, F C and Celeri, L and Goold, J and Vinjanampathy, S and Modi, K, Enhancing the Charging Power of Quantum Batteries, Physical Review Letters, 118, (15), 2017, p150601Journal Article, 2017, DOI
 Dalton, B.J. and Goold, J. and Garraway, B.M. and Reid, M.D., Quantum entanglement for systems of identical bosons: I. General features, Physica Scripta, 92, (2), 2017Journal Article, 2017
 Dalton, B.J. and Goold, J. and Garraway, B.M. and Reid, M.D., Quantum entanglement for systems of identical bosons: II. Spin squeezing and other entanglement tests, Physica Scripta, 92, (2), 2017Journal Article, 2017
 Settino, J. and Lo Gullo, N. and Sindona, A. and Goold, J. and Plastina, F., Signatures of the singleparticle mobility edge in the groundstate properties of TonksGirardeau and noninteracting Fermi gases in a bichromatic potential, Physical Review A, 95, (3), 2017Journal Article, 2017
 Pietracaprina, F. and Gogolin, C. and Goold, J., Total correlations of the diagonal ensemble as a generic indicator for ergodicity breaking in quantum systems, Physical Review B, 95, (12), 2017Journal Article, 2017
 Znidaric, M. and MendozaArenas, J.J. and Clark, S.R. and Goold, J., Dephasing enhanced spin transport in the ergodic phase of a manybody localizable system, Annalen der Physik, 529, (7), 2017, p1600298Journal Article, 2017
 Peterson, J PS and Sarthour, R S and Souza, A M and Oliveira, I S and Goold, J and Modi, K and SoaresPinto, D O and Celeri, L, Experimental demonstration of information to energy conversion in a quantum system at the Landauer limit, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 472, (2188), 2016Journal Article, 2016
 Liu, N. and Goold, J. and Fuentes, I. and Vedral, V. and Modi, K. and Bruschi, D.E., Quantum thermodynamics for a model of an expanding Universe, Classical and Quantum Gravity, 33, (3), 2016Journal Article, 2016
 Goold, J. and Huber, M. and Riera, A. and Del Rio, L. and Skrzypczyk, P., The role of quantum information in thermodynamics  A topical review, Journal of Physics A: Mathematical and Theoretical, 49, (14), 2016Journal Article, 2016
 Goold, J. and Paternostro, M. and Modi, K., Nonequilibrium quantum landauer principle, Physical Review Letters, 114, (6), 2015Journal Article, 2015
 Binder, F.C. and Vinjanampathy, S. and Modi, K. and Goold, J., Quantacell: Powerful charging of quantum batteries, New Journal of Physics, 17, (7), 2015, p075015Journal Article, 2015, DOI
 Binder, F. and Vinjanampathy, S. and Modi, K. and Goold, J., Quantum thermodynamics of general quantum processes, Physical Review E  Statistical, Nonlinear, and Soft Matter Physics, 91, (3), 2015, p032119Journal Article, 2015, DOI
 Goold, J. and Gogolin, C. and Clark, S.R. and Eisert, J. and Scardicchio, A. and Silva, A., Total correlations of the diagonal ensemble herald the manybody localization transition, Physical Review B  Condensed Matter and Materials Physics, 92, (18), 2015Journal Article, 2015
 Batalhao, T B and Souza, A M and Mazzola, L and Auccaise, R and Sarthour, R S and Oliveira, I S and Goold, J and De Chiara, G and Paternostro, M and Serra, R M, Experimental reconstruction of work distribution and study of fluctuation relations in a closed quantum system, Physical Review Letters, 113, (14), 2014Journal Article, 2014
 Plesch, M. and Dahlsten, O. and Goold, J. and Vedral, V., Maxwell's Daemon: Information versus Particle Statistics, Scientific Reports, 4, 2014, p6995Journal Article, 2014
 Goold, J. and Poschinger, U. and Modi, K., Measuring the heat exchange of a quantum process, Physical Review E  Statistical, Nonlinear, and Soft Matter Physics, 90, (2), 2014Journal Article, 2014
 Del Campo, A. and Goold, J. and Paternostro, M., More bang for your buck: Superadiabatic quantum engines, Scientific Reports, 4, 2014Journal Article, 2014
 Dalton, B.J. and Heaney, L. and Goold, J. and Garraway, B.M. and Busch, T., New spin squeezing and other entanglement tests for two mode systems of identical bosons, New Journal of Physics, 16, 2014Journal Article, 2014
 Sindona, A. and Goold, J. and Lo Gullo, N. and Plastina, F., Statistics of the work distribution for a quenched fermi gas, New Journal of Physics, 16, 2014Journal Article, 2014
 Mascarenhas, E and Braganca, H and Dorner, Ross and Santos, M Franca and Vedral, V and Modi, K and Goold, J, Work and quantum phase transitions: Quantum latency, Physical Review E  Statistical, Nonlinear, and Soft Matter Physics, 89, (6), 2014Journal Article, 2014
 Plastina, F. and Sindona, A. and Goold, J. and Lo Gullo, N. and Lorenzo, S., Decoherence in a fermion environment: Nonmarkovianity and orthogonality catastrophe, Open Systems and Information Dynamics, 20, (3), 2013Journal Article, 2013
 Dorner, R. and Clark, S.R. and Heaney, L. and Fazio, R. and Goold, J. and Vedral, V., Extracting quantum work statistics and fluctuation theorems by singlequbit interferometry, Physical Review Letters, 110, (23), 2013Journal Article, 2013
 Sindona, A. and Goold, J. and Lo Gullo, N. and Lorenzo, S. and Plastina, F., Orthogonality catastrophe and decoherence in a trappedfermion environment, Physical Review Letters, 111, (16), 2013Journal Article, 2013
 Dorner, R. and Goold, J. and Heaney, L. and Farrow, T. and Vedral, V., Effects of quantum coherence in metalloprotein electron transfer, Physical Review E  Statistical, Nonlinear, and Soft Matter Physics, 86, (3), 2012, p031922  031928Journal Article, 2012
 Dorner, R. and Goold, J. and Cormick, C. and Paternostro, M. and Vedral, V., Emergent Thermodynamics in a Quenched Quantum ManyBody System, Physical Review Letters, 109, (16), 2012, p160601  160607Journal Article, 2012
 Haikka, P. and Goold, J. and McEndoo, S. and Plastina, F. and Maniscalco, S., Nonmarkovianity, loschmidt echo, and criticality: A unified picture, Physical Review A  Atomic, Molecular, and Optical Physics, 85, (6), 2012, p060101Journal Article, 2012
 Lelas, K. and Seva, T. and Buljan, H. and Goold, J., Pinning quantum phase transition in a TonksGirardeau gas: Diagnostics by groundstate fidelity and the Loschmidt echo, Physical Review A  Atomic, Molecular, and Optical Physics, 86, (3), 2012, p033620Journal Article, 2012
 Fogarty, T. and Gullo, N.L. and Goold, J. and Paternostro, M. and Busch, T., Probing a manyParticle system using a single qubit, Optics InfoBase Conference Papers, 2012Journal Article, 2012
 Lamb, H.D.L. and McCann, J.F. and McLaughlin, B.M. and Goold, J. and Wells, N. and Lane, I., Structure and interactions of ultracold Yb ions and Rb atoms, Physical Review A  Atomic, Molecular, and Optical Physics, 86, (2), 2012Journal Article, 2012
 Dorner, R. and Goold, J. and Vedral, V., Towards quantum simulations of biological information flow, Interface Focus, 2, (4), 2012, p522528Journal Article, 2012
 Fogarty, T and Busch, T and Goold, J and Paternostro, M, Nonlocality of two ultracold trapped atoms, New Journal of Physics, 13, (2), 2011, p023016Journal Article, 2011
 Goold, J. and Fogarty, T. and Lo Gullo, N. and Paternostro, M. and Busch, T., Orthogonality catastrophe as a consequence of qubit embedding in an ultracold Fermi gas, Physical Review A  Atomic, Molecular, and Optical Physics, 84, (6), 2011, p063632  063638Journal Article, 2011
 Rutherford, L. and Goold, J. and Busch, T. and McCann, J.F., Transport, atom blockade, and output coupling in a TonksGirardeau gas, Physical Review A  Atomic, Molecular, and Optical Physics, 83, (5), 2011, p055601  055605Journal Article, 2011
 Li, J. and Fogarty, T. and Cormick, C. and Goold, J. and Busch, T. and Paternostro, M., Tripartite nonlocality and continuousvariable entanglement in thermal states of trapped ions, Physical Review A  Atomic, Molecular, and Optical Physics, 84, (2), 2011, p022321  022328Journal Article, 2011
 Goold, J. and Krych, M. and Idziaszek, Z. and Fogarty, T. and Busch, Th., An eccentrically perturbed TonksGirardeau gas, New Journal of Physics, 12, 2010, p093041Journal Article, 2010
 Goold, J. and Doerk, H. and Idziaszek, Z. and Calarco, T. and Busch, T., Ioninduced density bubble in a strongly correlated onedimensional gas, Physical Review A  Atomic, Molecular, and Optical Physics, 81, (4), 2010, p041601Journal Article, 2010
 Goold, J. and Heaney, L. and Busch, T. and Vedral, V., Detection and engineering of spatial mode entanglement with ultracold bosons, Physical Review A  Atomic, Molecular, and Optical Physics, 80, (2), 2009, p022338  022343Journal Article, 2009
 Goold, J. and Busch, Th., Groundstate properties of a TonksGirardeau gas in a split trap, Physical Review A  Atomic, Molecular, and Optical Physics, 77, (6), 2008, p063601Journal Article, 2008
 Goold, J and O'Donoghue, D and Busch, Th, Lowdensity, onedimensional quantum gases in the presence of a localized attractive potential, Journal of Physics B: Atomic, Molecular and Optical Physics, 41, (21), 2008, p215301Journal Article, 2008
 Murphy, D.S. and McCann, J.F. and Goold, J. and Busch, Th., Boson pairs in a onedimensional split trap, Physical Review A  Atomic, Molecular, and Optical Physics, 76, (5), 2007, p053616  053625Journal Article, 2007
 Goold, J, Maxwell's Demon Meets Nonequilibrium Quantum Thermodynamics, Physics , 9, 2016, p136  138Journal Article, 2016
 Varma, V K and Lerose, A and Pietracaprina, F and Goold, J and Scardicchio, A, Energy diffusion in the ergodic phase of a many body localizable spin chain, Journal of Statistical Mechanics: Theory and Experiment, 2017, (5), 2017, p053101Journal Article, 2017
 Campisi, M and Goold J , Thermodynamics of quantum information scrambling , Physical Review E  Statistical, Nonlinear, and Soft Matter Physics, 95, (6), 2017, p062127Journal Article, 2017
 Guarnieri, G and Campbell, S and Goold, J and Pigeon, S and Vacchini, B and Paternostro, M, Full counting statistics approach to the quantum nonequilibrium Landauer bound, New Journal of Physics, 19, (10), 2017, p103038Journal Article, 2017
 Fogarty, T and Usui, A and Busch, T and Silva, A and Goold, J, Dynamical phase transitions and temporal orthogonality in onedimensional hardcore bosons: from the continuum to the lattice, New Journal of Physics , 19, (11), 2017, p113018Journal Article, 2017
 The role of quantum work statistics in manybody physics in, Thermodynamics in the Quantum Regime , Springer , 2018, [Goold J. and Plastina F. and Gambassi A. and Silva A.]Book Chapter, 2018
 Brenes, M and Mascarenhas, E and Rigol, M and Goold, J, Hightemperature coherent transport in the XXZ chain in the presence of an impurity, Physical Review B:Condensed Matter and Materials, 98, (23), 2018, p235128Journal Article, 2018, DOI , TARA  Full Text
 MendozaArenas, J J and Znidaric, M and Varma, V K and Goold, J and Clark, SR and Scardicchio, A, Asymmetry in energy versus spin transport in certain interacting disordered systems, Physical Review B: Condensed Matter and Materials, 99, (9), 2019, p094435Journal Article, 2019, DOI , TARA  Full Text
 Francica, G and Goold, J and Plastina F, Role of coherence in the nonequilibrium thermodynamics of quantum systems, Physical Review E: Statistical, Nonlinear and Soft Matter Physics , 99, (4), 2019, p042105Journal Article, 2019, DOI , TARA  Full Text
 Guarnieri, G and Ng, NHY and Modi, K and Eisert, Jens and Paternostro, M and Goold, J, Quantum work statistics and resource theories: bridging the gap through R{\'e}nyi divergences, Physical Review E: Statistical, Nonlinear, and Soft Matter Physics, 99, (5), 2019, 050101Journal Article, 2019, DOI , TARA  Full Text
 Mascarenhas, E and Damanet, F and Flannigan, S and Tagliacozzo, L and Daley, Andrew J. and Goold, J and de Vega, I, Nonreciprocal quantum transport at junctions of structured leads, Physical Review B: Condensed Matter and Materials Physics, 99, (24), 2019, p245134  245143Journal Article, 2019, DOI , TARA  Full Text
 Balachandran, V and Clark, S R. and Goold, J and Poletti, D, Energy Current Rectification and Mobility Edges, Physical Review Letters, 123, (2), 2019, p020603  020609Journal Article, 2019, DOI , TARA  Full Text
 von Lindenfels, D. and Grab, O. and Schmiegelow, C. T. and Kaushal, V. and Schulz, J. and Mitchison, M T. and Goold, J and SchmidtKaler, F. and Poschinger, U. G., Spin Heat Engine Coupled to a HarmonicOscillator Flywheel, Physical Review Letters, 123, (8), 2019, p080602  080608Journal Article, 2019, DOI , TARA  Full Text
 Timpanaro, A M. and Guarnieri, G and Goold, J and Landi, G T, Thermodynamic Uncertainty Relations from Exchange Fluctuation Theorems, Physical Review Letters , 123, (9), 2019, p090604  090610Journal Article, 2019, DOI , TARA  Full Text
 Guarnieri, G and Landi, G T. and Clark, S R. and Goold, J, Thermodynamics of precision in quantum nonequilibrium steady states, Physical Review Research , 1, (3), 2019, p033021  033034Journal Article, 2019, DOI , TARA  Full Text
 M Paternostro and G De Chiara and A Ferraro and M Campisi and J Goold and F L Semiao and F Plastina and V Vedral, Out of equilibrium thermodynamics of quantum harmonic chains, Journal of Statistical Mechanics: Theory and Experiment, 2019, (10), 2019, p104014Journal Article, 2019, DOI , TARA  Full Text
 Goold J, Geometry and quantum thermodynamics , Quantum , 3, 2019, p28Journal Article, 2019
 Mitchison M.T and Fogarty T and Guarnieri G and Campbell S and Busch T and Goold J, Nondestructive insitu thermometry of a cold gas via rephrasing impurities , Physical Review Letters, arXiv:2004.02911 , 2020Journal Article, 2020, TARA  Full Text
 Chiaracane C and Mitchison MT and Purkayastha A and Haack G and Goold J, Quasiperiodic quantum heat engines with a mobility edge, Physical Review Research , 2, (1), 2020, p013093  013105Journal Article, 2020, DOI , TARA  Full Text
 Brenes M and Pappalardi S and Goold J and Silva A, Multipartite entanglement in the Eigenstate Thermalisation Hypothesis, Physical Review Letters , 124, (4), 2020, p040605  040611Journal Article, 2020, DOI , TARA  Full Text
 Purkayastha A and Guarnieri G and Mitchison M T and Fillip R and Goold J , Tunable phononinduced steady state coherence in a doublequantumdot charge qubit , npj Quantum Information , 6, (1), 2020, p1  7Journal Article, 2020, URL , TARA  Full Text
 Anza F and Pietracaprina F and Goold J , Logarithmic growth of local entropy and total correlations in manybody localized dynamics , Quantum , 4, 2020, p250Journal Article, 2020, DOI , TARA  Full Text
 Brenes M and MendozaArenas JJ and Purkayastha A and Mitchison MT and Clark SR and Goold J , Tensornetwork method to simulate strongly interacting quantum thermal machines, Physical Review X , 10, (3), 2020, p031040Journal Article, 2020, DOI , TARA  Full Text
 Brenes M and LeBland T and Goold J and Rigol M, Eigenstate Thermalisation in a Locally Perturbed Integrable System , Physical Review Letters , 125, (7), 2020, p070605Journal Article, 2020, DOI , TARA  Full Text
 Brenes M and Goold J and Rigol M , "Ballistic vs diffusive lowfrequency scaling in the XXZ and a locally perturbed XXZ chain", Physical Review B , arXiv:2005.12309 , 2020Journal Article, 2020, URL , TARA  Full Text
 Francica G, Binder F C, Guarnieri G, Mitchison M. T, Goold J and Plastina F, Quantum coherence and ergotropy, Physical Review Letters , 125, 2020, p180603Journal Article, 2020, DOI , TARA  Full Text
 RignonBret, A. and Guarnieri, G. and Goold, J. and Mitchison, M.T., Thermodynamics of precision in quantum nanomachines, Physical Review E, 103, (1), 2021Journal Article, 2021, DOI , URL
 Miller, H.J.D. and Guarnieri, G. and Mitchison, M.T. and Goold, J., Quantum Fluctuations Hinder FiniteTime Information Erasure near the Landauer Limit, Physical Review Letters, 125, (16), 2020Journal Article, 2020, DOI , URL
 Mitchison, M.T. and Fogarty, T. and Guarnieri, G. and Campbell, S. and Busch, T. and Goold, J., In Situ Thermometry of a Cold Fermi Gas via Dephasing Impurities, Physical Review Letters, 125, (8), 2020Journal Article, 2020, DOI , URL , TARA  Full Text
 Brenes, M. and Goold, J. and Rigol, M., Lowfrequency behavior of offdiagonal matrix elements in the integrable XXZ chain and in a locally perturbed quantumchaotic XXZ chain, Physical Review B, 102, (7), 2020Journal Article, 2020, DOI , URL , TARA  Full Text
 Malouf, W.T.B. and Goold, J. and Adesso, G. and Landi, G.T., Analysis of the conditional mutual information in ballistic and diffusive nonequilibrium steadystates, Journal of Physics A: Mathematical and Theoretical, 53, (30), 2020Journal Article, 2020, DOI , URL , TARA  Full Text
 Goold, J. and Plastina, F. and Gambassi, A. and Silva, A., The Role of Quantum Work Statistics in ManyBody Physics, Fundamental Theories of Physics, 195, 2018, p317336Journal Article, 2018, DOI , URL , TARA  Full Text
 Francica, G. and Goold, J. and Plastina, F. and Paternostro, M., Daemonic ergotropy: Enhanced work extraction from quantum correlations, npj Quantum Information, 3, (1), 2017Journal Article, 2017, DOI , URL , TARA  Full Text
 Plesch, M. and Dahlsten, O. and Goold, J. and Vedral, V., Comment on "quantum szilard engine", Physical Review Letters, 111, (18), 2013Journal Article, 2013, DOI , URL
 Chiaracane, C. and Pietracaprina, F. and Purkayastha, A. and Goold, J., Quantum dynamics in the interacting Fibonacci chain, Physical Review B, 103, (18), 2021Journal Article, 2021, DOI , URL
 Mzaouali, Z. and Puebla, R. and Goold, J. and El Baz, M. and Campbell, S., Work statistics and symmetry breaking in an excitedstate quantum phase transition, Physical Review E, 103, (3), 2021Journal Article, 2021, DOI , URL
 Maria Popovic, Mark T Mitchison, Aidan Strathearn, Brendon W Lovett, John Goold, Paul R Eastham, Quantum Heat Statistics with TimeEvolving Matrix Product Operators, PRX Quantum, 2021Journal Article, 2021
 Archak Purkayastha, Giacomo Guarnieri, Steve Campbell, Javier Prior, John Goold, Periodically refreshed baths to simulate open quantum manybody dynamics, Physical Review B , 2021Journal Article, 2021
 Mark T. Mitchison, John Goold and Javier Prior, Charging a quantum battery with linear feedback control, Quantum , 2021Journal Article, 2021
 John Goold , Dephasing enhanced transport in boundarydriven quasiperiodic chains, Physical Review B , 2021Journal Article, 2021
 Marlon Brenes, Silvia Pappalardi, Mark T. Mitchison, John Goold, and Alessandro Silva, Outoftimeorder correlations and the fine structure of eigenstate thermalization, Physical Review E, 2021Journal Article, 2021
 John Goold and Kavan Modi , Fluctuation theorem for nonunital dynamics, AVS Quantum Science , 2021Journal Article, 2021
 Chiaracane, C. and Purkayastha, A. and Mitchison, M.T. and Goold, J., Dephasingenhanced performance in quasiperiodic thermal machines, Physical Review B, 105, (13), 2022Journal Article, 2022, DOI , URL
 Mitchison, M.T. and Purkayastha, A. and Brenes, M. and Silva, A. and Goold, J., Taking the temperature of a pure quantum state, Physical Review A, 105, (3), 2022Journal Article, 2022, DOI , URL
 Culhane, O. and Mitchison, M.T. and Goold, J., Extractable work in quantum electromechanics, Physical Review E, 106, (3), 2022Journal Article, 2022, DOI , URL
 Guarnieri, G. and Mitchison, M.T. and Purkayastha, A. and Jaksch, D. and BuÄ a, B. and Goold, J., Time periodicity from randomness in quantum systems, Physical Review A, 106, (2), 2022Journal Article, 2022, DOI , URL
 Desaules, J.Y. and Pietracaprina, F. and PapiÄ , Z. and Goold, J. and Pappalardi, S., Extensive Multipartite Entanglement from su(2) Quantum ManyBody Scars, Physical Review Letters, 129, (2), 2022Journal Article, 2022, DOI , URL
 Purkayastha, A. and Guarnieri, G. and Campbell, S. and Prior, J. and Goold, J., Periodically refreshed quantum thermal machines, Quantum, 6, 2022Journal Article, 2022, DOI , URL
 Dooley, S. and Pappalardi, S. and Goold, J., Entanglement enhanced metrology with quantum manybody scars, Physical Review B, 107, (3), 2023Journal Article, 2023, DOI , URL
 Popovic, M., Mitchison, M.T., Goold, J., Thermodynamics of decoherence, arXiv, 2021Journal Article, 2021
 LogariÄ , L. and Dooley, S. and Pappalardi, S. and Goold, J., Quantum ManyBody Scars in DualUnitary Circuits, Physical Review Letters, 132, (1), 2024Journal Article, 2024, DOI , URL
 Keenan, N. and Robertson, N.F. and Murphy, T. and Zhuk, S. and Goold, J., Evidence of KardarParisiZhang scaling on a digital quantum simulator, npj Quantum Information, 9, (1), 2023Journal Article, 2023, DOI , URL
 Lacerda, A.M. and Purkayastha, A. and Kewming, M. and Landi, G.T. and Goold, J., Quantum thermodynamics with fast driving and strong coupling via the mesoscopic leads approach, Physical Review B, 107, (19), 2023Journal Article, 2023, DOI , URL
 Xuereb, J. and Campbell, S. and Goold, J. and Xuereb, A., Deterministic quantum computation with onecleanqubit model as an open quantum system, Physical Review A, 107, (4), 2023Journal Article, 2023, DOI , URL
 Bettmann, L.P. and Kewming, M.J. and Goold, J., Thermodynamics of a continuously monitored doublequantumdot heat engine in the repeated interactions framework, Physical Review E, 107, (4), 2023Journal Article, 2023, DOI , URL
Research Expertise

TitleNonEquilibrium SteadyStates of Quantum many body systems (QuamNESS)SummaryQuantum thermodynamics is an emerging and expanding field that is experiencing a remarkable growth in output. Important progress is still needed before it can impact significantly on the technological and industrial sector. QuamNESS will contribute to narrowing this knowledge gap by providing an innovative and powerful platform that combines powerful numerics with advanced theoretical tools. Crucially, this mixture of methodologies is both fundamental and practical in nature. The proposed project will deepen our understanding of the conceptual building blocks of quantum thermodynamic processes at the smallest scales at the frontier of future technologies. It will also build sophisticated numerical methods for accurately tracking of the properties of increasingly complex systems relevant for the engineering of real nanoscale devices. The project therefore represents the first systematic merging of these two perspectives within the burgeoning field of quantum thermodynamics. Such a novel combination will spur new analyses of nonequilibrium physics, previously prevented by the inherent difficulty of simulating complex quantum systems and lack of clarity in how to quantify their functional behaviour. By realizing its objectives, QuamNESS will thus make a substantive impact in our understanding of nonequilibrium steady states in the quantum regime, with immediate benefits for the broadest quantum community. In particular, QuamNESS's deliverables are of relevance for nanotechnology, chemistry, biology and, potentially, industrial applications in magnetic materials and memory devices. At the same time the project will help identify further challenges in the design of quantum devices and will lay the foundations of new thermodynamically inspired approaches.Funding AgencySFIEPRSCDate From01/12/20Date To01/12/20

TitleODYSSEYOpen dynamics of interacting and disordered quantum systemsSummaryThis research proposal focuses on the open quantum system dynamics of disordered and interacting many body systems coupled to external baths. The dynamics of systems which contain both disorder and interactions are currently under intense theoretical investigation in condensed matter physics due to the discovery of a new phase of matter known as manybody localization. With the experimental realization of such systems in mind, this proposal addresses an essential issue which is to understand how coupling to external degrees of freedom influences dynamics. These systems are intrinsically complex and lie beyond the unitary closed system paradigm, so the research proposed here contains interdisciplinary methodology beyond the mainstream in condensed matter physics ranging from quantum information to quantum optics. The project has three principal objectives each of which would represent a major contribution to the field: 1. To describe the dynamics of a interacting, disordered manybody systems when coupled to external baths. O 2. To perform a full characterization of spin and energy transport in their nonequilibrium steady state. 3. To explore the system capabilities as steady state thermal machine from a systematic microscopic perspective. This will be the first comprehensive study of the open system phenomenology of disordered interacting manybody systems. It will also allow for the systematic study of energy and spin transport and the exploration of the potential of these systems as steady state thermal machines. In order to successfully carry out the work proposed here, the applicant will build a world class team at Trinity College Dublin. Due to his track record and interdisciplinary background in manybody physics, quantum information and statistical mechanics combined with his personal drive and ambition the applicant is in a formidable position to successfully undertake this task with the platform provided by this ERC Starting Grant.Funding AgencyEuropean Research CouncilDate From01/07/2018Date To01/07/2023

TitleThermodynamic potential of disordered quantum wiresSummaryThermodynamics is a theory with an impressive range of applicability, successfully describing the properties of macroscopic systems ranging from refrigerators in your kitchen to black holes in the universe. With the the industrial and electronic revolutions behind us, we are currently pushing technology towards and beyond the microscopic scale to the border of where quantum mechanical effects prevail. Currently, there is a large interest in the quantum information, quantum optics and statistical mechanics communities surrounding the thermodynamic description of nonequilibrium quantum systems from both a fundamental and applicative view point. Central to this interest is the concept of the quantum thermal machine. These are machines which convert heat to work at the nanoscale level and are expected to play an increasingly central role in emerging quantum technologies. A highly relevant and well studied example of such machines, in the classical and quantum domain, are thermoelectrics. A thermoelectric device is one which converts heat to electrical energy, but is different to other thermal devices in that it does not have moving parts such as pistons or gears. In thermoelectrics  steady state electrical currents can be made flow in the presence of a thermal gradients and vice versa. This is why they are sometimes known as steady state devices. Despite the progress made in the last years, the efficiency of such devices remains too low to be competitive with other technologies and there is no clear consensus what are the microscopic components which lead to good thermoelectric efficiencies. This research focuses on understanding how the fundamental microscopic features of a material, containing the inevitable ingredients of disorder, interactions and dephasing, could give rise to favourable thermal expectation values which would boost both power and efficiency of a steady state thermal device which uses that material as a working medium.Funding AgencyRoyal Society/SFIDate From01/10/17Date To01/10/21

TitleThermodynamics for Quantum TechnologiesSummaryWhen considering devices operating at a scale where quantum mechanical laws become important we may ask whether the solid grounds of thermodynamics might be challenged, not only by the lack of a thermodynamic limit, but also by the intrinsic uncertainty synonymous with this domain. It comes as no surprise that there has been a recent concerted effort to understand how the laws of thermodynamics generalize to arbitrary quantum systems both at and away from equilibrium. This effort is known as quantum thermodynamics and its development and application is the subject of this proposal. Specifically I will develop and apply thermodynamic concepts to finite size quantum systems in generically non equilibrium settings. By combining well developed tools of condensed matter physics, quantum information and quantum optics with quantum thermodynamics approaches I plan to model the physics of both single and manybody quantum devices and systems at and far from thermodynamic equilibrium. Specifically the research is focused on the description, development and optimization of stochastic quantum engine cycles, developing concepts in quantum thermodynamics to understand the thermodynamic efficiency of quantum information processing and in addition to explore the emergence of thermodynamic behavior from the underlying complex dynamics of manybody systems.The research outlined will enhance our understanding of the fundamental limitations of future technologies, generate the blueprints for a new class of optimized nanomachines, lead to the new design of efficient controls for thermal machines and enhance our understanding of non equilibrium quantum dynamics.Funding AgencyRoyal Society/SFIDate From01/10/17Date To01/10/2022

TitleICARUS  Information Content of Localisation: From classical to quantum systemsSummaryThe aim of this proposal is to study quantum dynamics in the presence of disorder, and specifically the Anderson and many body localization transition to a phase where transport and thermalization are absent. Localization in quantum systems has both deep fundamental implications in many different fields and exciting practical applications in quantum technology. In this action the researcher, who is experienced in the statistical physics of quantum disordered systems, will address in a novel and timely way this topic. She aims to improve understanding of it with a threefold approach: a quantum information experimental effort; new theoretical tools coming from the study of random matrices and the physics of glassy systems; and a joint work with a nonacademic entity on numerical methods that use artificial neural networks for the classification of the localized phase. She will perform this work in the perfectly suited environment of the Thermodynamics and Energetics of Quantum Systems research group at Trinity College Dublin.Funding AgencyEuropean CommissionDate From01/01/20Date To01/01/22

TitlePREBOpen Quantum Dynamics via Periodically Refreshed BathsSummaryPReB: open quantum dynamics via Periodically Refreshed Baths is a research proposal with two ambitious goals: (a) develop a theory to numerically exactly describe quantum dissipative manybody systems under a constant or time dependent voltage/temperature bias, (b) use the theory to explore quan tum thermodynamics of such systems. This requires combining fundamental concepts from condensed matter physics with those from open quantum systems and incorporating these into stateoftheart nu merical techniques for manybody dynamics. PReB seeks to provide a widely applicable goto numerical technique for exploring, understanding and benchmarking noisy quantum devices.Funding AgencyEuropean CommissionDate From01/05/2020Date To01/05/2022

TitleShortcutenhanced quantum thermodynamicsSummaryWe are currently at the beginning of a second quantum revolution: With technology developments reaching smaller and smaller scales, quantum effects must be taken fully into consideration. Such new quantum technologies are already emerging, e.g., quantum cryptography and quantum simulations for drug design. Nevertheless, the realization of quantum technologies which is beyond the proofofprinciple state and which fully utilize the potential of quantum mechanics remains a major challenge because of the fragile nature of quantum states. There is a strong need for understanding and controlling manyparticle complex systems at the quantum level. The key idea of this project is to combine shortcutstoadiabaticy and quantum thermodynamics to design a new route for solving these challenges. The potential for this merging is nearly selfexplaining: ideal thermodynamic processes are based on adiabatic processes which give maximal efficiency but unfortunately require infinite operation time; on the other hand, shortcutstoadiabaticy are techniques to speedup adiabatic processes. Having leading expertise in Ireland in both of these research fields naturally motivates to this proposal. The achieved knowledge will be also used to design new energetically efficient quantum technologies.Funding AgencyScience Foundation Ireland (SFI)Date From01/09/20Date To01/09/24

TitleSFiERC Support Grant  ODYSSEYSummaryThis is a grant provided by SFI to ERC awardees to help with the grant administration.Funding AgencyScience Foundation Ireland (SFI)Date From01/07/2018Date To01/07/2023

TitleComplex Quantum Thermal MachinesSummaryThe central goal of this project is to take a powerful numerical technique known as matrix product operators and apply the technique to computationally model the basic physics of a class of quantum thermal machines. So, in addition to a significant fundamental scientific component, this research project also promises to develop new computational tools that can be applied to a range of existing architectures, working towards the ultimate goal of machine optimisation.Funding AgencyTrinity College DublinDate From01/09/20Date To01/09/24
Physics,
Recognition
 Commendation in IRC Researcher of the Year Award 2020 2020
 SFI Starting Investigator Award (SIRG) 2016
 FY2020 JSPS Invitational Fellowship for Research in Japan 2020
 SFIRoyal Society University Research Fellow (TCD) 2017
 Election to Fellowship at Trinity College Dublin 2022
 Marie Curie International Mobility Fellow (University of Oxford) 2010
 ERC Starting Grant Awardee 2017
 Membership of Irish Federation of University Teachers (IFUT) Present
 University Research Fellow of Royal Society Present
 Election to the Young Academy of Europe Present
 Member of Marie Curie Fellows Alumni Association Present
 Taskforce setup by SFI to scope Ireland's potential for financial investment in the field of quantum technologies. I was a panel member and was assigned the role of contacting international Irish alumni in the field and related fields. 21/01/2020
 External Phd examiner for Scuala Normale Pisa, University of Turku (Finland) .Universtiy of Trieste (Italy) 2016
 Scientific referee for Optics Communications, European Physical Journal B/D, New Journal of Physics, Physics Scripta and Proceedings of the Royal Society A 2013
 External Refereee for the following PROLA Journals: Review of Modern Physics, Physical Review X, Physical Review Letters, Physical Review A, Physical Review B and Physical Review E 2011
 Project reviewer for European Research Council both for ERC Starting and Consolidator Research Grants 2017
 Scientific Referee journals of Nature Publishing Group including Nature Physics, Nature Communications, Scientific Reports and npJ Quantum Information 2013