Bibliographic Citation
| Document | For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field. For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability. |
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| DOI | 10.1103/PhysRevB.71.045102 |
| Title | Dependence of information entropy of uniform Fermi systems on correlations and thermal effects |
| Creator/Author | Moustakidis, Ch.C. ; Massen, S.E. [Department of Theoretical Physics, Aristotle University of Thessaloniki, GR-54124, Thessaloniki (Greece)] |
| Publication Date | 2005 Jan 15 |
| OSTI Identifier | OSTI ID: 20665064 |
| Other Number(s) | Journal ID: ISSN 1098-0121; TRN: US05A6998102971 |
| Resource Type | Journal Article |
| Resource Relation | Journal Name: Physical Review. B, Condensed Matter and Materials Physics; Journal Volume: 71; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevB.71.045102; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA) |
| Subject | 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRON GAS; ENTROPY; HELIUM 3; KINETIC ENERGY; LIQUIDS; NUCLEAR MATTER; PARTICLE INTERACTIONS; TEMPERATURE DEPENDENCE |
| Description/Abstract | The influence of correlations of uniform Fermi systems (nuclear matter, electron gas, and liquid {sup 3}He) on Shannon's information entropy, S, is studied. S is the sum of the information entropies in position and momentum spaces. It is found that, for three different Fermi systems with different particle interactions, the correlated part of S (S{sub cor}) depends on the correlation parameter of the systems or on the discontinuity gap of the momentum distribution through two parameter expressions. The values of the parameters characterize the strength of the correlations. A two parameter expression also holds between S{sub cor} and the mean kinetic energy (K) of the Fermi system. The study of thermal effects on the uncorrelated electron gas leads to a relation between the thermal part of S (S{sub thermal}) and the fundamental quantities of temperature, thermodynamical entropy, and the mean kinetic energy. It is found that, in the case of low temperature limit, the expression connecting S{sub thermal} with K is the same to the one which connects S{sub cor} with K. There are only some small differences on the values of the parameters. Thus, regardless of the reason (correlations or thermal) that changes K, S takes almost the same value. |
| Country of Publication | United States |
| Language | English |
| Format | Medium: X; Size: page(s) 045102-045102.9 |
| System Entry Date | 2008 Feb 09 |
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Last Updated: 11/19/2009