Results 51 to 60 of about 218,101 (195)

Energy Requirement of Control: Comments on Szilard's Engine and Maxwell's Demon [PDF]

open access: yes, 2012
In mathematical physical analyses of Szilard's engine and Maxwell's demon, a general assumption (explicit or implicit) is that one can neglect the energy needed for relocating the piston in Szilard's engine and for driving the trap door in Maxwell's ...
Brillouin L.   +7 more
core   +3 more sources

All Shook Up: Fluctuations, Maxwell’s Demon and the Thermodynamics of Computation

open access: yesEntropy, 2013
The most successful exorcism of Maxwell’s demon is Smoluchowski’s 1912 observation that thermal fluctuations would likely disrupt the operation of any molecular-scale demonic machine.
John D. Norton
doaj   +1 more source

Artificially intelligent Maxwell’s demon for optimal control of open quantum systems [PDF]

open access: yesQuantum Science and Technology
Feedback control of open quantum systems is of fundamental importance for practical applications in various contexts, ranging from quantum computation to quantum error correction and quantum metrology.
P. A. Erdman   +6 more
semanticscholar   +1 more source

Quantum Thermodynamic Cycles and quantum heat engines [PDF]

open access: yes, 2006
In order to describe quantum heat engines, here we systematically study isothermal and isochoric processes for quantum thermodynamic cycles. Based on these results the quantum versions of both the Carnot heat engine and the Otto heat engine are defined ...
C. H. Bennett   +15 more
core   +2 more sources

The Demon in a Vacuum Tube

open access: yesEntropy, 2013
In the present paper, several issues concerning the second law of thermodynamics, Maxwell’s demon and Landauer’s principle are dealt with. I argue that if the demon and the system on which it operates without dissipation of external energy are made of ...
Germano D'Abramo
doaj   +1 more source

Alternative experimental ways to access entropy production

open access: yesPhysical Review Research, 2021
We theoretically derive and experimentally compare several different ways to access entropy production in a quantum process under feedback control. We focus on a bipartite quantum system realizing an autonomous Maxwell's demon scheme reported by Najera ...
Zheng Tan   +4 more
doaj   +1 more source

Conditioning, Correlation and Entropy Generation in Maxwell’s Demon

open access: yesEntropy, 2013
Maxwell’s Demon conspires to use information about the state of a confined molecule in a Szilard engine (randomly frozen into a state subspace by his own actions) to derive work from a single-temperature heat bath.
Neal G. Anderson
doaj   +1 more source

Experimental Rectification of Entropy Production by Maxwell's Demon in a Quantum System. [PDF]

open access: yesPhysical Review Letters, 2016
Maxwell's demon explores the role of information in physical processes. Employing information about microscopic degrees of freedom, this "intelligent observer" is capable of compensating entropy production (or extracting work), apparently challenging the
Patrice A. Camati   +7 more
semanticscholar   +1 more source

Dynamics of osmosis in a porous medium [PDF]

open access: yesRoyal Society Open Science, 2014
We derive from kinetic theory, fluid mechanics and thermodynamics the minimal continuum-level equations governing the flow of a binary, non-electrolytic mixture in an isotropic porous medium with osmotic effects.
Silvana S. S. Cardoso   +1 more
doaj   +1 more source

Demon-like Algorithmic Quantum Cooling and its Realization with Quantum Optics [PDF]

open access: yes, 2012
The simulation of low-temperature properties of many-body systems remains one of the major challenges in theoretical and experimental quantum information science.
A Aspuru-Guzik   +37 more
core   +2 more sources

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