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Group Member

Archak Purkayastha

Postdoctoral Researcher
School of Physics
Trinity College Dublin

Research Gate
Archak is a physicist from Kolkata.


He graduated with Bachelors degree in Physics from Jadavpur University, Kolkata, in 2011, followed by a Masters Degree in Physics from Indian Institute of Technology, Kanpur, in 2013. Then he did his Ph.D at the International Centre for Theoretical Sciences, Tata Institute for Fundamental Research (ICTS-TIFR), Bangalore, under the supervision of Prof. Abhishek Dhar. He defended his PhD in September, 2018. He stayed at ICTS-TIFR till December, 2018 as a visiting-fellow. From Feb 1, 2019, he has joined the QuSys team for his post-doctoral research. During his PhD, he has developed expertise in the formalism for investigating transport phenomena in open quantum systems. As a part of QuSys, he will be exploring thermodynamics of open quantum systems, and applications of open quantum systems in building, for example, quantum engines and sensors.

Outside of Physics, he plays the harmonica and is quite interested in music, especially the blues.

Selected Publications

  1. Out-of-equilibrium open quantum systems: A comparison of approximate quantum master equation approaches with exact results,
    A. Purkayastha, A. Dhar and M. Kulkarni
    Phys. Rev. A 93, 062114 (2016)

  2. Nonequilibrium phase diagram of a one-dimensional quasiperiodic system with a single-particle mobility edge,
    A. Purkayastha, A. Dhar and M. Kulkarni
    Phys. Rev. B 96, 180204(R) (2017)

  3. Anomalous transport in the Aubry-André-Harper model in isolated and open systems,
    A. Purkayastha, S. Sanyal, A. Dhar and M. Kulkarni
    Phys. Rev. B 97, 174206 (2018)