Results 131 to 139 of about 338 (139)

Maxwell’s Demon, Szilard Engine and Landauer Principle [PDF]

Resonance, 2021
The second law of thermodynamics is probabilistic in nature. Its formulation requires that the state of a system be described by a probability distribution. A natural question, thereby, arises as to whether a prior knowledge about the state of the system affects the second law.
A M Jayannavar, Jayannavar A M, P S Pal
exaly   +3 more sources

Cooling Classical Particles with a Microcanonical Szilard Engine [PDF]

Physical Review Letters, 2010
We discuss the possibility of extraction of energy from a single heat bath in a cyclic process, under some special initial conditions. We give an explicit example in which a system initially prepared in a microcanonical ensemble, is able to perform such operation.
J M R Parrondo
exaly   +4 more sources

Coarse-grained Entropy Balance of the Szilard Engine

Foundations of Physics
Abstract In order to reconcile the entropy reduction of a system through external interventions that are linked to a measurement with the second law of thermodynamics, there are two main proposals: (i) The entropy reduction is compensated by the entropy increase as a result of the measurement on the system (“Szilard principle").
Heinz-Jürgen Schmidt, Schmidt Heinz-Jürgen   +1 more
exaly   +3 more sources

Revisiting the quantum Szilard engine with fully quantum considerations [PDF]

Annals of Physics, 2012
By considering level shifting during the insertion process we revisit the quantum Szilard engine (QSZE) with fully quantum consideration. We derive the general expressions of the heat absorbed from thermal bath and the total work done to the environment by the system in a cycle with two different cyclic strategies.
Jian Zou, Lianao Wu, Hai Li
exaly   +3 more sources

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Parity effect and phase transitions in quantum Szilard engines

Physical Review E, 2012
Quantum Szilard engines with an arbitrary number of identical particles are studied in this paper. Analytical expressions for the total work in the low- and high-temperature limits are obtained. The total work depends on both the particle statistics, the odd-even parity, and the temperature of the system. The parity effect is drastic in fermion systems.
Yao, Lu, Gui Lu, Long
openaire   +2 more sources

Energy requirement of control: Comments on Szilard's engine and Maxwell's demon [PDF]

Europhysics Letters, 2012
New, simpler and more fundamental approach utilizing the physical meaning of control-information and the related entropy production.
Kish, Laszlo B., Granqvist, Claes G.
exaly   +3 more sources

Szilard’s Engine: Measurement, Information, and Maxwell’s Demon

AIP Conference Proceedings, 2002
Using an isolated measurement process, we calculate the effect measurement has on entropy for the multi‐cylinder Szilard engine. We find that the system of cylinders possesses an entropy associated with cylinder total energy states, and that it records information transferred at measurement. Contrary to other’s results, we find that the apparatus loses
exaly   +2 more sources

A Theoretical Mechanism of Szilard Engine Function in Nucleic Acids and the Implications for Quantum Coherence in Biological Systems

AIP Conference Proceedings, 2010
Stanley Jeffers, Peter Rowlands
exaly  

Szilard’s information heat engines in the deep quantum regime

Journal of the Korean Physical Society, 2012
Sang Wook Kim
exaly