• Corpus ID: 208910835

Refined Definitions of Heat and Work in Quantum Thermodynamics

  title={Refined Definitions of Heat and Work in Quantum Thermodynamics},
  author={B Ahmadi and S. Salimi and A. S. Khorashad},
  journal={arXiv: Quantum Physics},
In this paper unambiguous redefinitions of heat and work are presented for quantum thermodynamic systems. We will use the genuine reasoning based on which Clausius originally defined work and heat in establishing thermodynamics. The change in the energy which is accompanied by a change in the entropy is identified as heat, while any change in the energy which does not lead to a change in the entropy is known as work. It will be seen that quantum coherence does not allow all the energy exchanged… 

Figures from this paper

A Schmidt decomposition approach to quantum thermodynamics
The development of a self-consistent thermodynamic theory of quantum systems is of fundamental importance for modern physics. Still, despite its essential role in quantum science and technology,
Nonadiabatic coupled-qubit Otto cycle with bidirectional operation and efficiency gains.
We study a quantum Otto cycle that uses a 2-qubit working substance whose Hamiltonian does not commute with itself at different times during unitary strokes. We investigate how the cycle responds to
Correlation-enabled energy exchange in quantum systems without external driving
Powered by TCPDF (www.tcpdf.org) This material is protected by copyright and other intellectual property rights, and duplication or sale of all or part of any of the repository collections is not
A comment on a possible inadequacy of new redefinitions of heat and work in quantum thermodynamics
We analyze the new redefinitions of heat Q and work W recently presented in [arXiv: 1912.01939; arXiv:1912.01983v5] in the quantum thermodynamics domain. According to these redefinitions, heat must
Unambiguous Formulation for Heat and Work in Arbitrary Quantum Evolution
Given a trajectory described by a time-dependent density matrix of an arbitrary open quantum system, we formulate a general and unambiguous method to separate the internal energy change of the system
Quantum thermodynamics in adiabatic open systems and its trapped-ion experimental realization
Quantum thermodynamics aims at investigating both the emergence and the limits of the laws of thermodynamics from a quantum mechanical microscopic approach. In this scenario, thermodynamic processes


A 12
  • L103
  • 1979
Introductory Quantum Optics (Cambridge
  • 2005
We discuss the distribution function for the current noise in Quantum point contacts. Special interest is paid to contact of a superconductor with a normal metal. A new derivation of the
Entangled Systems: New Directions in Quantum Physics
Preface to the English Edition. Preface to the German Edition. 1 The Mathematical Framework. 1.1 Hilbert Vector Space. 1.2 Liouville Operator Space. 1.3 The Elements of Probability Theory. 1.4
The Mathematical Language of Quantum Theory: From Uncertainty to Entanglement
Introduction 1. Hilbert space refresher 2. States and effects 3. Observables 4. Operations and channels 5. Measurement models and instruments 6. Entanglement Bibliography Index.
Quantum Computation and Quantum Information
This chapter discusses quantum information theory, public-key cryptography and the RSA cryptosystem, and the proof of Lieb's theorem.
  • Commun. 8, 2180
  • 2017
  • Rev. Lett. 122, 047702
  • 2019
Journal of Mathematical Physics 19
  • 1227
  • 1978