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http://hdl.handle.net/2445/18741
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DC Field | Value | Language |
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dc.contributor.author | Johal, Ramandeep S. | cat |
dc.contributor.author | Planes Vila, Antoni | cat |
dc.contributor.author | Vives i Santa-Eulàlia, Eduard | cat |
dc.date.accessioned | 2011-07-07T12:51:42Z | - |
dc.date.available | 2011-07-07T12:51:42Z | - |
dc.date.issued | 2003 | - |
dc.identifier.issn | 1539-3755 | - |
dc.identifier.uri | http://hdl.handle.net/2445/18741 | - |
dc.description.abstract | The extended Gaussian ensemble (EGE) is introduced as a generalization of the canonical ensemble. This ensemble is a further extension of the Gaussian ensemble introduced by Hetherington [J. Low Temp. Phys. 66, 145 (1987)]. The statistical mechanical formalism is derived both from the analysis of the system attached to a finite reservoir and from the maximum statistical entropy principle. The probability of each microstate depends on two parameters ß and ¿ which allow one to fix, independently, the mean energy of the system and the energy fluctuations, respectively. We establish the Legendre transform structure for the generalized thermodynamic potential and propose a stability criterion. We also compare the EGE probability distribution with the q-exponential distribution. As an example, an application to a system with few independent spins is presented. | eng |
dc.format.extent | 8 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | eng |
dc.publisher | The American Physical Society | eng |
dc.relation.isformatof | Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.68.056113 | cat |
dc.relation.ispartof | Physical Review E, 2003, vol. 67, núm. 5, p. 056113-1-056113-8 | - |
dc.relation.uri | http://dx.doi.org/10.1103/PhysRevE.68.056113 | - |
dc.rights | (c) The American Physical Society, 2003 | eng |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Física estadística | cat |
dc.subject.classification | Termodinàmica | cat |
dc.subject.classification | Sistemes dinàmics diferenciables | cat |
dc.subject.other | Statistical physics | eng |
dc.subject.other | Thermodynamics | eng |
dc.subject.other | Differentiable dynamical systems | eng |
dc.title | Statistical mechanics in the extended Gaussian ensemble | eng |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 513167 | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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513167.pdf | 501.6 kB | Adobe PDF | View/Open |
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