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Titolo:
Induced instability for boson-fermion mixed condensates of alkali-metal atoms due to the attractive boson-fermion interaction - art. no. 033611
Autore:
Miyakawa, T; Suzuki, T; Yabu, H;
Indirizzi:
Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan Tokyo Metropolitan Univ Tokyo Japan 1920397 t Phys, Tokyo 1920397, Japan
Titolo Testata:
PHYSICAL REVIEW A
fascicolo: 3, volume: 6403, anno: 2001,
pagine: 3611 -
SICI:
1050-2947(200109)6403:3<3611:IIFBMC>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
EINSTEIN CONDENSATION; ZERO-TEMPERATURE; MIXTURES; GAS; DEGENERACY; POTASSIUM; THRESHOLD; COLLAPSE; LITHIUM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Miyakawa, T Tokyo Metropolitan Univ, Dept Phys, 1-1 Minami Ohsawa, Tokyo 1920397, Japan Tokyo Metropolitan Univ 1-1 Minami Ohsawa Tokyo Japan 1920397
Citazione:
T. Miyakawa et al., "Induced instability for boson-fermion mixed condensates of alkali-metal atoms due to the attractive boson-fermion interaction - art. no. 033611", PHYS REV A, 6403(3), 2001, pp. 3611

Abstract

Instabilities for boson-fermion mixed condensates of trapped alkali-metal atoms due to the boson-fern-don attractive interaction are studied using a variational method. A stable, metastable, and unstable region as a functionof the boson-fermion interaction exists. The stability condition is obtained analytically from the asymptotic expansion of the variational total energy. The lifetime of metastable states is discussed for tunneling decay and is estimated to be very long. It suggests that, except near the instabilityborder, metastable mixed condensate should be almost stable against tunneling decay. The critical border between metastable and unstable phases is calculated numerically and is shown to be consistent with the Molmer scaling condition.

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Documento generato il 26/01/20 alle ore 10:52:01