Special Seminar: A quasiprobability distribution for heat fluctuations in the quantum regime

05/02/2020 - 11:30 - 10:30Add To Calendar 2020-02-05 10:30:00 2020-02-05 11:30:00 Special Seminar: A quasiprobability distribution for heat fluctuations in the quantum regime S P E C I A L    S E M I N A R   Wednesday, 5/02/2020, 10:30 am Building 211, seminar room   SPEAKER: Dr. Amikam Levy Department of Chemistry University of California, Berkeley      TOPIC: A quasiprobability distribution for heat fluctuations in the quantum regime   Abstract: The standard approach to deriving fluctuation theorems fails to capture the effect of quantum correlation and coherence in the initial state of the system. I overcome this difficulty by showing that the heat exchange between two locally thermal states in the presence of initial quantum correlations is faithfully captured by the Margenau-Hill quasiprobability distribution. I will discuss the thermodynamic interpretation of the negative probabilities which witness non-classicality. Furthermore, I will provide inequalities for the heat flows that can only be violated in the presence of these negativities. The results are tested on data collected in a recent experiment studying the heat transfer between two spin half systems in an NMR setup.   A. Levy and M. Lostaligo, arXiv:1909.11116 (2019) Abstract (PDF) Department of Chemistry chemistry.office@biu.ac.il Asia/Jerusalem public

S P E C I A L    S E M I N A R

 

Wednesday, 5/02/2020, 10:30 am

Building 211, seminar room

 

SPEAKER:

Dr. Amikam Levy

Department of Chemistry

University of California, Berkeley

 

 

 TOPIC:

A quasiprobability distribution for heat fluctuations in the quantum regime

 

Abstract:

The standard approach to deriving fluctuation theorems fails to capture the effect of quantum correlation and coherence in the initial state of the system. I overcome this difficulty by showing that the heat exchange between two locally thermal states in the presence of initial quantum correlations is faithfully captured by the Margenau-Hill quasiprobability distribution. I will discuss the thermodynamic interpretation of the negative probabilities which witness non-classicality. Furthermore, I will provide inequalities for the heat flows that can only be violated in the presence of these negativities. The results are tested on data collected in a recent experiment studying the heat transfer between two spin half systems in an NMR setup.

 

A. Levy and M. Lostaligo, arXiv:1909.11116 (2019)

Abstract (PDF)

תאריך עדכון אחרון : 30/01/2020