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Mathematical Physics Seminar

Open Quantum Systems: Time Dynamics and Steady States    

Manas Kulkarni  - International Center for Theoretical Sciences 

Location:  Hill 705
Date & time: Thursday, 19 April 2018 at 2:00PM - 3:00PM

Abstract:  I will discuss various approaches used in treating open quantum systems and will make a detailed comparison between various methods [1,2]. Both time dynamics and non-equilibrium steady states (NESS) will be discussed. I will then discuss an open quantum system generalization of incommensurate models [3,4] and will argue that this will provide a great insight into the proprieties of the system (such as NESS current scaling with system size) which can be missed if one computes only closed system quantities.

[1] A. Purkayastha, A. Dhar, M. Kulkarni, Phys. Rev. A 93, 062114, (2016)

[2] A. Purkayastha, A. Dhar, M. Kulkarni,  Phys. Rev. A 94, 052134, (2016)

[3] A. Purkayastha, S. Sanyal, A. Dhar, M. Kulkarni,  arXiv:1702.05228, (2017)

[4] A. Purkayastha, A. Dhar, M. Kulkarni,  Phys. Rev. B (Rapid Communications) 96, 180204, (2017)"       

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