Quantum coherence can be transformed into heat

• URL: http://arxiv.org/abs/2301.00196v1
• Date: Sat, 31 Dec 2022 13:34:58 GMT
• Title: Quantum coherence can be transformed into heat
• Authors: Xue-Qun Yan, Yan-Jiao Du, Wen-Tao Hou, and Xiao-Ming Liu
• Abstract summary: The first law of thermodynamics partitions the change in energy of a system into two pieces, heat and work. Recent studies have shown if contribution of quantum coherence is considered to the change of internal energy of the system, the first law of thermodynamics can be extended to the quantum domain.
• Score: 11.45160925944536
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The first law of thermodynamics restates the law of conservation of energy. It partitions the change in energy of a system into two pieces, heat and work. While there is no ambiguity to define heat and work in classical thermodynamics, their classification in the quantum regime is not that obvious. Thus, the first law of thermodynamics becomes problematic in the quantum regime. However, recent studies have shown if contribution of quantum coherence is considered to the change of internal energy of the system, the first law of thermodynamics can be extended to the quantum domain. Here we investigate the new version of first law of thermodynamics for some quantum transformations by using two-level atomic system under non-dissipative channel. In our work we achieve a novel result that quantum coherence can be transformed into heat, and the heat can dissipate into the environments.

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)
• Coherence manipulation in asymmetry and thermodynamics [44.99833362998488]
  In the classical regime, thermodynamic state transformations are governed by the free energy. In the quantum regime, coherence and free energy are two independent resources. We show that allowing along with a source of free energy allows us to amplify any quantum coherence present in the quantum state arbitrarily.
  arXiv  Detail & Related papers  (2023-08-24T14:18:19Z)
• Thermodynamic state convertibility is determined by qubit cooling and heating [2.9998889086656577]
  We show how athermality can be used to heat and cool other quantum systems that are initially at thermal equilibrium. We then show that the convertibility between quasi-classical resources is fully characterized by their ability to cool and heat qubits.
  arXiv  Detail & Related papers  (2023-01-15T09:00:20Z)
• Unification of the first law of quantum thermodynamics [0.0]
  Underlying the classical thermodynamic principles are analogous microscopic laws, arising from the fundamental axioms of quantum mechanics. The foremost quantum thermodynamic law is a simple statement concerning the conservation of energy. There exist ambiguity and disagreement regarding the precise partition of a quantum system's energy change to work and heat.
  arXiv  Detail & Related papers  (2022-08-22T19:36:41Z)
• 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)
• Gauge Quantum Thermodynamics of Time-local non-Markovian Evolutions [77.34726150561087]
  We deal with a generic time-local non-Markovian master equation. We define current and power to be process-dependent as in classical thermodynamics. Applying the theory to quantum thermal engines, we show that gauge transformations can change the machine efficiency.
  arXiv  Detail & Related papers  (2022-04-06T17:59:15Z)
• Open-system approach to nonequilibrium quantum thermodynamics at arbitrary coupling [77.34726150561087]
  We develop a general theory describing the thermodynamical behavior of open quantum systems coupled to thermal baths. Our approach is based on the exact time-local quantum master equation for the reduced open system states.
  arXiv  Detail & Related papers  (2021-09-24T11:19:22Z)
• 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)
• Probabilistically Violating the First Law of Thermodynamics in a Quantum Heat Engine [0.0]
  We show that in the presence of quantum fluctuations, the first law of thermodynamics may break down. This happens because quantum mechanics imposes constraints on the knowledge of heat and work. Our results imply that in the presence of quantum fluctuations, the first law of thermodynamics may not be applicable to individual experimental runs.
  arXiv  Detail & Related papers  (2021-02-02T09:23:21Z)
• 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)
• On the contribution of work or heat in exchanged energy via interaction in open bipartite quantum systems [0.0]
  We will use genuine reasoning based on which Clausius originally defined work and heat in establishing thermodynamics. It will be shown that these refined definitions will strongly affect the entropy production of quantum thermodynamic processes.
  arXiv  Detail & Related papers  (2019-12-04T13:52:46Z)

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.