Zobrazeno 1 - 10
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pro vyhledávání: '"Gyftopoulos, Elias P."'
Autor:
Gyftopoulos, Elias P.
A recent essay [1] reminds us of how richly Boltzmann deserves to be admiringly commemorated for the originality of his ideas on the occasion of his 150th birthday. Without any doubt, the scientific community owes Boltzmann a great debt of gratitude
Externí odkaz:
http://arxiv.org/abs/0710.2299
Autor:
Gyftopoulos, Elias P.
Interpretations of key concepts, such as uncertainty relations, kinetic energy, value of an observable, probability distributions, the projection or collapse of a wave function postulate, and discrete versus continuous values, that appear in several
Externí odkaz:
http://arxiv.org/abs/0709.1096
Autor:
Gyftopoulos, Elias P.
In two articles, the authors claim that the Heisenberg uncertainty principle limits the precision of simultaneous measurements of the position and velocity of a particle and refer to experimental evidence that supports their claim. It is true that ev
Externí odkaz:
http://arxiv.org/abs/0707.1638
Autor:
Gyftopoulos, Elias P.
In a report published in Science, Scully et al propose to generate "phaseonium", and "extract work from a single heat bath via vanishing coherence" [1]. On the basis of the laws of physics, such a proposal is futile for at least two reasons.
Com
Com
Externí odkaz:
http://arxiv.org/abs/0706.2947
Autor:
Gyftopoulos, Elias P.
The authors of Ref. [1] claim to have experimental verification of violations of the second law of thermodynamics based on the assertions: (i) "for large systems and over long times the entropy production rate is necessarily positive"; (ii) Loschmidt
Externí odkaz:
http://arxiv.org/abs/0706.2860
The correct laws of thermodynamics, either classical or quantum without probabilities of statistical quantum mechanics are valid for all systems, large or small, including systems of one spin or one particle only. So no violations can occur in nanosc
Externí odkaz:
http://arxiv.org/abs/0706.2842
Autor:
Gyftopoulos, Elias P.
In a brief article [1], Seife refers to works by Einstein and Schroedinger and concludes that there is a relentless murmur of confusion underneath the chorus of praise for quantum theory. It is noteworthy that a "murmur" is not necessarily a cause fo
Externí odkaz:
http://arxiv.org/abs/0706.2848
In a PRL [1], the authors claim to show that "the Clausius inequality can be violated, and that it is even possible to extract work from a thermal bath by cyclic variations of a parameter ("perpetuum mobile"), and that the physical cause for this beh
Externí odkaz:
http://arxiv.org/abs/0706.2835
Upon reviewing the article by Allahverdyan and Nieuwenhuizen in PRE, we conclude that neither the Landauer principle nor the counterexamples presented by the authors have any relation (i) to thermodynamics, and (ii) to the interdependence of nonstati
Externí odkaz:
http://arxiv.org/abs/0706.2176
Autor:
Gyftopoulos, Elias P.
The information-theoretic arguments presented in a recent publication on "Quantum discord and Maxwell's demons" are discussed, and found not to address the problem specified by Maxwell. Two interrelated and definitive exorcisms of the demon, one pure
Externí odkaz:
http://arxiv.org/abs/0706.1966