Results 101 to 110 of about 1,985,486 (239)

Complexity-Constrained Quantum Thermodynamics

open access: yesPRX Quantum
Quantum complexity measures the difficulty of realizing a quantum process, such as preparing a state or implementing a unitary. We present an approach to quantifying the thermodynamic resources required to implement a process if the process’s complexity ...
Anthony Munson   +5 more
doaj   +1 more source

Quantum correlations in the thermodynamic limit: the XY-model [PDF]

open access: yesarXiv, 2011
We investigate thermal properties of quantum correlations in the thermodynamic limit with reference to the XY ...
arxiv  

Quantum mechanical bound for efficiency of quantum Otto heat engine

open access: yes, 2019
The second law of thermodynamics constrains that the efficiency of heat engines, classical or quantum, cannot be greater than the universal Carnot efficiency.
Chun, Hyun-Myung   +3 more
core   +1 more source

Clock-driven quantum thermal engines

open access: yesNew Journal of Physics, 2015
We consider an isolated autonomous quantum machine, where an explicit quantum clock is responsible for performing all transformations on an arbitrary quantum system (the engine), via a time-independent Hamiltonian. In a general context, we show that this
Artur S L Malabarba   +2 more
doaj   +1 more source

About thermodynamics of Schwarzschild black holes in a three-dimensional quantum vacuum with generalized uncertainty relations [PDF]

open access: yesKragujevac Journal of Science
By considering a modified version of generalized uncertainty relations in the model of a three-dimensional dynamic quantum vacuum characterized by a variable energy density, new relevant perspectives of analysis of the thermodynamics of Schwarzschild ...
Fiscaletti Davide
doaj   +1 more source

Sub-Quantum Thermodynamics as a Basis of Emergent Quantum Mechanics

open access: yesEntropy, 2010
This review presents results obtained from our group’s approach to model quantum mechanics with the aid of nonequilibrium thermodynamics. As has been shown, the exact Schrödinger equation can be derived by assuming that a particle of energy  is actually ...
Gerhard Grössing
doaj   +1 more source

Are there Thermodynamical Degrees of Freedom of Gravitation? [PDF]

open access: yesFound.Phys. 33 (2003) 529, 2003
In discussing fundamentals of general-relativistic irreversible continuum thermodynamics, this theory is shown to be characterized by the feature that no thermodynamical degrees of freedom are ascribed to gravitation. However, accepting that black hole thermodynamics seems to oppose this harmlessness of gravitation one is called on consider other ...
arxiv  

Leggett-Garg Inequalities for Quantum Fluctuating Work

open access: yesEntropy, 2018
The Leggett-Garg inequalities serve to test whether or not quantum correlations in time can be explained within a classical macrorealistic framework. We apply this test to thermodynamics and derive a set of Leggett-Garg inequalities for the statistics of
Harry J. D. Miller, Janet Anders
doaj   +1 more source

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