Results 11 to 20 of about 4,451 (294)
Condensation versus ordering: From the spherical models to Bose-Einstein condensation in the canonical and grand canonical ensemble [PDF]
Physical Review Research, 2019 In this paper, we take a fresh look at the long-standing issue of the nature of macroscopic density fluctuations in the grand canonical treatment of the Bose-Einstein condensation (BEC).
A. Crisanti, A. Sarracino, M. Zannetti
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Entanglement entropy and phase portrait of f(R)-AdS black holes in the grand canonical ensemble
Nuclear Physics B, 2019 In this work, we investigate the thermodynamical behavior of charged AdS black holes from f(R) gravity corrections with a constant Ricci scalar curvature in the grand-canonical ensemble.
Adil Belhaj, Hasan El Moumni
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The grand canonical ensemble in generalized thermostatistics [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2004 We study the grand-canonical ensemble with a fluctuating number of degrees of freedom in the context of generalized thermostatistics. Several choices of grand-canonical entropy functional are considered. The ideal gas is taken as an example.
Naudts, Jan, van der Straeten, Erik
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European Physical Journal C: Particles and Fields, 2023 The thermodynamics of the Bardeen black hole in asymptotically flat space is investigated with the corrected first law of thermodynamics via Rényi statistics.
Zefeng Wang +3 more
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Gravitational duals to the grand canonical ensemble abhor Cauchy horizons
Journal of High Energy Physics, 2020 The gravitational dual to the grand canonical ensemble of a large N holographic theory is a charged black hole. These spacetimes — for example Reissner- Nordström-AdS — can have Cauchy horizons that render the classical gravitational dynamics of the ...
Sean A. Hartnoll +3 more
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A grand-canonical ensemble of randomly triangulated surfaces
Physics Letters B, 1986 Abstract An algorithm is presented generating the grand-canonical ensemble of discrete, randomly triangulated Polyakov surfaces. The algorithm is used to calculate the susceptibility exponent, which controls the existence of the continuum limit of the considered model, for the dimensionality of the embedding space ranging from 0 to 20.
JURKIEWICZ, J +2 more
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Charged black hole in a grand canonical ensemble [PDF]
Physical Review D, 1990 A spherical charged black hole in thermal equilibrium is considered from the perspective of a grand canonical ensemble in which the electrostatic potential, temperature, and surface area are specified at a finite boundary. A correspondence is established between the boundary-value data of a well-posed problem in a finite region of Euclidean spacetime ...
, Braden, , Brown, , Whiting, , York
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Universal critical wrapping probabilities in the canonical ensemble
Nuclear Physics B, 2015 Universal dimensionless quantities, such as Binder ratios and wrapping probabilities, play an important role in the study of critical phenomena. We study the finite-size scaling behavior of the wrapping probability for the Potts model in the random ...
Hao Hu, Youjin Deng
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Open quantum systems and the grand canonical ensemble
Physical Review EThe celebrated Lindblad equation governs the nonunitary time evolution of density operators used in the description of open quantum systems. It is usually derived from the von Neumann equation for a large system, at given physical conditions, when a small subsystem is explicitly singled out and the rest of the system acts as an environment whose ...
Benedikt M. Reible, Luigi Delle Site
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The structure of a fluid in the canonical and in the grand canonical ensembles
The ensemble inequivalence in a (unscreened) Coulomb liquid has been known since the years 1960s. The structure described by the canonical ensemble and the grand canonical ensemble are not equivalent. We show that this fact also affects many long range fluid.
Fantoni, Riccardo
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