Thermodynamics of light emission

• URL: http://arxiv.org/abs/2101.09156v1
• Date: Wed, 20 Jan 2021 15:05:19 GMT
• Title: Thermodynamics of light emission
• Authors: Antoine Rignon-Bret
• Abstract summary: entropy is known to be irreversible processes in classical and quantum fields. We quantify irreversibility for a quantum and classical description of the electromagnetic field.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Some interactions between classical or quantum fields and matter are known to be irreversible processes. Here we associate an entropy to the electromagnetic field from well-known notions of statistical quantum mechanics, in particular the notion of diagonal entropy. We base our work on the study of spontaneous emission and light diffusion. We obtain a quantity which allows to quantify irreversibility for a quantum and classical description of the electromagnetic field, that we can study and interpret from a thermodynamical point of view.

Related papers

• Quantum Thermodynamics [0.0]
  Theory of quantum thermodynamics investigates how the concepts of heat, work, and temperature can be carried over to the quantum realm. Lecture notes provide an introduction to the thermodynamics of small quantum systems.
  arXiv  Detail & Related papers  (2024-06-27T14:28:35Z)
• Thermodynamic uncertainty relation for quantum entropy production [0.0]
  In quantum thermodynamics, entropy production is usually defined in terms of the quantum relative entropy between two states. In the absence of coherence between the states, our result reproduces classic TURs in thermodynamics.
  arXiv  Detail & Related papers  (2024-04-28T12:36:35Z)
• Quantum relative entropy uncertainty relation [0.0]
  For classic systems, the fluctuations of a current have a lower bound in terms of the entropy production. We generalize this idea for quantum systems, where we find a lower bound for the uncertainty of quantum observables given in terms of the quantum relative entropy. We apply the result to obtain a quantum thermodynamic uncertainty relation in terms of the quantum entropy production, valid for arbitrary dynamics and non-thermal environments.
  arXiv  Detail & Related papers  (2023-09-15T18:58:51Z)
• Demonstrating Quantum Microscopic Reversibility Using Coherent States of Light [58.8645797643406]
  We propose and experimentally test a quantum generalization of the microscopic reversibility when a quantum system interacts with a heat bath. We verify that the quantum modification for the principle of microscopic reversibility is critical in the low-temperature limit.
  arXiv  Detail & Related papers  (2022-05-26T00:25:29Z)
• Correspondence Between the Energy Equipartition Theorem in Classical Mechanics and its Phase-Space Formulation in Quantum Mechanics [62.997667081978825]
  In quantum mechanics, the energy per degree of freedom is not equally distributed. We show that in the high-temperature regime, the classical result is recovered.
  arXiv  Detail & Related papers  (2022-05-24T20:51:03Z)
• Gauge invariant quantum thermodynamics: consequences for the first law [0.0]
  Information theory plays a major role in the identification of thermodynamic functions. We explicitly construct physically motivated gauge transformations which encode a gentle variant of coarse-graining behind thermodynamics. As a consequence, we reinterpret quantum work and heat, as well as the role of quantum coherence.
  arXiv  Detail & Related papers  (2021-04-20T17:53:16Z)
• Taking the temperature of a pure quantum state [55.41644538483948]
  Temperature is a deceptively simple concept that still raises deep questions at the forefront of quantum physics research. We propose a scheme to measure the temperature of such pure states through quantum interference.
  arXiv  Detail & Related papers  (2021-03-30T18:18:37Z)
• Catalytic Transformations of Pure Entangled States [62.997667081978825]
  Entanglement entropy is the von Neumann entropy of quantum entanglement of pure states. The relation between entanglement entropy and entanglement distillation has been known only for the setting, and the meaning of entanglement entropy in the single-copy regime has so far remained open. Our results imply that entanglement entropy quantifies the amount of entanglement available in a bipartite pure state to be used for quantum information processing, giving results an operational meaning also in entangled single-copy setup.
  arXiv  Detail & Related papers  (2021-02-22T16:05:01Z)
• Evolution of a Non-Hermitian Quantum Single-Molecule Junction at Constant Temperature [62.997667081978825]
  We present a theory for describing non-Hermitian quantum systems embedded in constant-temperature environments. We find that the combined action of probability losses and thermal fluctuations assists quantum transport through the molecular junction.
  arXiv  Detail & Related papers  (2021-01-21T14:33:34Z)
• Geometric Quantum Thermodynamics [0.0]
  Building on parallels between geometric quantum mechanics and classical mechanics, we explore an alternative basis for quantum thermodynamics. We develop both microcanonical and canonical ensembles, introducing continuous mixed states as distributions on the manifold of quantum states. We give both the First and Second Laws of Thermodynamics and Jarzynki's Fluctuation Theorem.
  arXiv  Detail & Related papers  (2020-08-19T21:55:25Z)
• Entropy production in the quantum walk [62.997667081978825]
  We focus on the study of the discrete-time quantum walk on the line, from the entropy production perspective. We argue that the evolution of the coin can be modeled as an open two-level system that exchanges energy with the lattice at some effective temperature.
  arXiv  Detail & Related papers  (2020-04-09T23:18:29Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.