Finite temperature correction to the Thomas–Fermi approximation for a Bose–Einstein condensate: comparison between theory and experiment
| Autor: | Emanuel Alves de Lima Henn, Kílvia Mayre Farias Magalhães, M. A. Caracanhas, Vanderlei Salvador Bagnato, Kristian Helmerson, J. A. Seman, E. R. F. Ramos |
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| Rok vydání: | 2009 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Bose gas Condensed Matter::Other Radius Function (mathematics) Condensed Matter Physics Atomic and Molecular Physics and Optics law.invention law Quantum electrodynamics Quantum mechanics Thermal Free expansion FÍSICA EXPERIMENTAL (COMPARAÇÃO) Thomas–Fermi model Bose–Einstein condensate Fermi Gamma-ray Space Telescope |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1361-6455 0953-4075 |
| DOI: | 10.1088/0953-4075/42/14/145304 |
| Popis: | We observe experimentally a deviation of the radius of a Bose–Einstein condensate from the standard Thomas–Fermi prediction, after free expansion, as a function of temperature. A modified Hartree–Fock model is used to explain the observations, mainly based on the influence of the thermal cloud on the condensate cloud. |
| Databáze: | OpenAIRE |
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