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Quantitative study of quasi-one-dimensional Bose gas experiments via the stochastic Gross-Pitaevskii equation

Lookup NU author(s): Parimala Saminathan, Dr Donatello Gallucci, Professor Nikolaos ProukakisORCiD

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Abstract

The stochastic Gross-Pitaevskii equation is shown to be an excellent model for quasi-one-dimensional Bose gas experiments, accurately reproducing the in situ density profiles recently obtained in the experiments of Trebbia et al. [Phys. Rev. Lett. 97, 250403 (2006)] and van Amerongen et al. [Phys. Rev. Lett. 100, 090402 (2008)] and the density fluctuation data reported by Armijo et al. [Phys. Rev. Lett. 105, 230402 (2010)]. To facilitate such agreement, we propose and implement a quasi-one-dimensional extension to the one-dimensional stochastic Gross-Pitaevskii equation for the low-energy, axial modes, while atoms in excited transverse modes are treated as independent ideal Bose gases.

Publication metadata

Author(s): Cockburn SP, Gallucci D, Proukakis NP

Publication type: Article

Publication status: Published

Journal: Physical Review A

Year: 2011

Volume: 84

Issue: 2

Print publication date: 08/08/2011

ISSN (print): 1050-2947

ISSN (electronic): 1094-1622

Publisher: American Physical Society

URL: http://dx.doi.org/10.1103/PhysRevA.84.023613

DOI: 10.1103/PhysRevA.84.023613

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