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T-c for trapped dilute Bose gases
Názov T-c for trapped dilute Bose gases Podnázov a second-order result Aut.údaje Peter Arnold, Boris Tomášik Autor Arnold Peter (50%)
Spoluautori Tomášik Boris 1972- (50%) UMBFP06 - Katedra fyziky
Zdroj.dok. Physical Review A : covering atomic, molecular, and optical physics and quantum information. Vol. 64, no. 5 (2001), pp. [1-21]. - Maryland : American Physical Society, 2001 Kľúč.slová condensation fyzika - physics Jazyk dok. angličtina Krajina Spojené štáty Systematika 53 Anotácia For some time, the theoretical result for the transition temperature of a dilute three-dimensional Bose gas in an arbitrarily wide harmonic trap has been known to first order in the interaction strength. We extend that result to second order. The first-order result for a gas trapped in a harmonic potential can be computed in mean-field theory (in contrast to the first-order result for a uniform gas, which cannot). We show that, at second order, perturbation theory suffices for relating the transition temperature to the chemical potential at the transition, but the chemical potential is nonperturbative at the desired order. The necessary information about the chemical potential can be extracted, however, from recent lattice simulations of uniform Bose gases. URL Link do databázy WoS Kategória publikačnej činnosti ADC Číslo archívnej kópie 40175 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika 
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