IISER Mohali, Knowledge city, Sector 81, SAS Nagar, Manauli PO 140306

Dr. Ramandeep S. Johal
Associate Professor, Physical Sciences

Email rsjohal(AT)iisermohali.ac.in
Phone +91 172 2293132
Fax +91 172 2240266
Personal Page                                                               
Research Area
Statistical Mechanics
Research Focus

My recent research has shown that intimate connection between thermodynamics and information is going to play a central role in our understanding of quantum phenomena. Understanding thermal properties of nano-materials also demands a thermodynamic framework appropriate for systems at small scales.

I am interested in the interplay of work and heat in quantum systems and we address various issues like how fundamental notions of thermodynamics may be modified in the light of quantum theory. The study is also popularly addressed as “Quantum Thermodynamics”. Heat engines using quantum working media provide a useful platform to analyze such issues.

Another line of enquiry is related to developing statistical mechanical tools for treating systems with long-range interactions. Issues like emergence of long-lived quasi-stationary states, ensemble inequivalence are addressed.

Selected Publications

  • Universal efficiency at optimal work with Bayesian statistics, R.S. Johal, Phys. Rev. E 82, 061113 (2010).
    Nonequilibrium temperature and quantum heat engines, R.S. Johal, Phys. Rev. E 80, 041119 (2009).
  • Work extremum principle: Structure and function of quantum heat engines by A.E. Allahverdyan, R.S. Johal and G. Mahler, Phys. Rev. E 77 (2008) 041118.
  • On the origin of quasi-stationary states in models of wave-particle interaction by A. Antoniazzi, R.S. Johal, D. Fanelli and S. Ruffo, Comm. in Nonlin. Science and Numerical Simulation 13 (2008) 2
  • Statistical mechanics in the extended gaussian ensemble by R.S. Johal, Antoni Planes and Eduard Vives, Phys. Rev. E 68 (2003) 56113.


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