Artículo
Calzetta, E.; Hu, B.L.; Verdaguer, E. "Stochastic Gross-Pitaevsky equation for BEC via coarse-grained effective action" (2007) International Journal of Modern Physics B. 21(23-24):4239-4247
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Abstract:
We sketch the major steps in a functional integral derivation of a new set of stochastic Gross-Pitaevsky equations (GPE) for a Bose-Einstein condensate (BEC) confined to a trap at zero temperature with the averaged effects of non-condensate modes incorporated as stochastic sources. The closed-time-path (CTP) coarse-grained effective action (CGEA) or the equivalent influence functional method is particularly suitable because it can account for the full back-reaction of the noncondensate modes on the condensate dynamics self-consistently. The Langevin equations derived here containing nonlocal dissipation together with colored and multiplicative noises are useful for a stochastic (as distinguished from a kinetic) description of the nonequilibrium dynamics of a BEC. This short paper contains original research results not yet published anywhere. © World Scientific Publishing Company.
Registro:
| Documento: | Artículo |
| Título: | Stochastic Gross-Pitaevsky equation for BEC via coarse-grained effective action |
| Autor: | Calzetta, E.; Hu, B.L.; Verdaguer, E. |
| Filiación: | CONICET, Departamento de Fisica, Universidad de Buenos Aires-Ciudad Universitaria, 1428 Buenos Aires, Argentina Department of Physics, University of Maryland, College Park, MD 20742, United States Departament de Fisica Fonamental, Institut de Ciencies del Cosmos, Universität de Barcelona, Av. Diagonal 647, 08028 Barcelona, Spain |
| Palabras clave: | Bose-Einstein condensates; Stochastic Gross-Pitaievsky equation |
| Año: | 2007 |
| Volumen: | 21 |
| Número: | 23-24 |
| Página de inicio: | 4239 |
| Página de fin: | 4247 |
| Título revista: | International Journal of Modern Physics B |
| Título revista abreviado: | Int. J. Mod. Phys. B |
| ISSN: | 02179792 |
| CODEN: | IJPBE |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02179792_v21_n23-24_p4239_Calzetta |
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Citas:
---------- APA ----------
Calzetta, E., Hu, B.L. & Verdaguer, E. (2007) . Stochastic Gross-Pitaevsky equation for BEC via coarse-grained effective action. International Journal of Modern Physics B, 21(23-24), 4239-4247.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02179792_v21_n23-24_p4239_Calzetta [ ]
---------- CHICAGO ----------
Calzetta, E., Hu, B.L., Verdaguer, E. "Stochastic Gross-Pitaevsky equation for BEC via coarse-grained effective action" . International Journal of Modern Physics B 21, no. 23-24 (2007) : 4239-4247.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02179792_v21_n23-24_p4239_Calzetta [ ]
---------- MLA ----------
Calzetta, E., Hu, B.L., Verdaguer, E. "Stochastic Gross-Pitaevsky equation for BEC via coarse-grained effective action" . International Journal of Modern Physics B, vol. 21, no. 23-24, 2007, pp. 4239-4247.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02179792_v21_n23-24_p4239_Calzetta [ ]
---------- VANCOUVER ----------
Calzetta, E., Hu, B.L., Verdaguer, E. Stochastic Gross-Pitaevsky equation for BEC via coarse-grained effective action. Int. J. Mod. Phys. B. 2007;21(23-24):4239-4247.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02179792_v21_n23-24_p4239_Calzetta [ ]
