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Quantum signatures in the work fluctuation-dissipation relation protocol

Li, Jian LU (2023) FYSK03 20231
Department of Physics
Mathematical Physics
Abstract
Quantum thermodynamics deals with the behavior of thermal machines that operate in the quantum regime, where coherences and entanglement can have a significant impact. However, detecting such quantum effects in thermal machines can be challenging, as they are primarily manifested as fluctuations. This thesis theoretically studies the protocol for the work fluctuation-dissipation relation (FDR) from stochastic thermodynamics. We find Quantum signatures including coherence and entanglement in the FDR. When there is coherence or entanglement, corrections are introduced into the FDR. To study the effect of entanglement, a generalized protocol is proposed.
Popular Abstract
Our work focuses on quantum and stochastic thermodynamics, studying small particles and their thermal properties. Quantum mechanics reveals phenomena like coherence and entanglement, absent in our macroscopic world. Coherence allows particles to exist in multiple states simultaneously, while entanglement shows strong connections between particles, enabling non-local interactions.

Combining quantum physics and thermodynamics is intriguing, given advances in quantum technology. Understanding energy and information flow between quantum systems is a key area of research. However, observing significant quantum effects remains challenging due to the small size and sensitivity of these systems.

We aim to discover systems with genuine... (More)
Our work focuses on quantum and stochastic thermodynamics, studying small particles and their thermal properties. Quantum mechanics reveals phenomena like coherence and entanglement, absent in our macroscopic world. Coherence allows particles to exist in multiple states simultaneously, while entanglement shows strong connections between particles, enabling non-local interactions.

Combining quantum physics and thermodynamics is intriguing, given advances in quantum technology. Understanding energy and information flow between quantum systems is a key area of research. However, observing significant quantum effects remains challenging due to the small size and sensitivity of these systems.

We aim to discover systems with genuine quantum signatures by identifying physical laws that hold in our classical world but can be violated in specific quantum systems. We construct theoretical models, focusing on the work fluctuation-dissipation relation, which describes fluctuations in small systems. By considering coherence and entanglement, absent in the non-quantum realm, we seek violations of this relation.

Our project studies two systems: one with quantum coherence and another with both coherence and entanglement. Comparing these systems, we demonstrate violations of the work fluctuation-dissipation relation. (Less)
Please use this url to cite or link to this publication:
author
Li, Jian LU
supervisor
organization
course
FYSK03 20231
year
type
M2 - Bachelor Degree
subject
keywords
Quantum entanglement, fluctuation, coherence, quantum information, quantum thermodynamics
language
English
id
9119623
date added to LUP
2023-06-07 10:10:49
date last changed
2023-06-07 10:10:49
@misc{9119623,
  abstract     = {{Quantum thermodynamics deals with the behavior of thermal machines that operate in the quantum regime, where coherences and entanglement can have a significant impact. However, detecting such quantum effects in thermal machines can be challenging, as they are primarily manifested as fluctuations. This thesis theoretically studies the protocol for the work fluctuation-dissipation relation (FDR) from stochastic thermodynamics. We find Quantum signatures including coherence and entanglement in the FDR. When there is coherence or entanglement, corrections are introduced into the FDR. To study the effect of entanglement, a generalized protocol is proposed.}},
  author       = {{Li, Jian}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Quantum signatures in the work fluctuation-dissipation relation protocol}},
  year         = {{2023}},
}