05/02/2020 - 11:30 - 10:30
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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)
