Collective modes of trapped interacting bosons

G. Gnanapragasam; M. P. Das

doi:10.1142/s0217979208050103

Collective modes of trapped interacting bosons

G. Gnanapragasam^*
, M. P. Das

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The derivation for collective modes of an interacting Bose gas trapped by an isotropic harmonic oscillator potential is presented using field-theoretic method. The presence of the two-body scattering term beyond the mean-field is seen to appear inevitably in the calculations, even in the simplest approximation. As a result we see the occurrence of a small number of non-condensate atoms in the ground state density fluctuations.

Original language	English
Pages (from-to)	4349-4357
Number of pages	9
Journal	International Journal of Modern Physics B
Volume	22
Issue number	25-26
DOIs	https://doi.org/10.1142/s0217979208050103
Publication status	Published - 20 Oct 2008

Access to Document

10.1142/s0217979208050103

Cite this

@article{f99fe1e082cc416d9d3a25195f0304f6,

title = "Collective modes of trapped interacting bosons",

abstract = "The derivation for collective modes of an interacting Bose gas trapped by an isotropic harmonic oscillator potential is presented using field-theoretic method. The presence of the two-body scattering term beyond the mean-field is seen to appear inevitably in the calculations, even in the simplest approximation. As a result we see the occurrence of a small number of non-condensate atoms in the ground state density fluctuations.",

keywords = "Collective modes, Harmonically confined, Interacting Bose gas",

author = "G. Gnanapragasam and Das, \{M. P.\}",

year = "2008",

month = oct,

day = "20",

doi = "10.1142/s0217979208050103",

language = "English",

volume = "22",

pages = "4349--4357",

journal = "International Journal of Modern Physics B",

issn = "0217-9792",

publisher = "World Scientific",

number = "25-26",

}

TY - JOUR

T1 - Collective modes of trapped interacting bosons

AU - Gnanapragasam, G.

AU - Das, M. P.

PY - 2008/10/20

Y1 - 2008/10/20

N2 - The derivation for collective modes of an interacting Bose gas trapped by an isotropic harmonic oscillator potential is presented using field-theoretic method. The presence of the two-body scattering term beyond the mean-field is seen to appear inevitably in the calculations, even in the simplest approximation. As a result we see the occurrence of a small number of non-condensate atoms in the ground state density fluctuations.

AB - The derivation for collective modes of an interacting Bose gas trapped by an isotropic harmonic oscillator potential is presented using field-theoretic method. The presence of the two-body scattering term beyond the mean-field is seen to appear inevitably in the calculations, even in the simplest approximation. As a result we see the occurrence of a small number of non-condensate atoms in the ground state density fluctuations.

KW - Collective modes

KW - Harmonically confined

KW - Interacting Bose gas

UR - https://www.scopus.com/pages/publications/55949104115

U2 - 10.1142/s0217979208050103

DO - 10.1142/s0217979208050103

M3 - Article

SN - 0217-9792

VL - 22

SP - 4349

EP - 4357

JO - International Journal of Modern Physics B

JF - International Journal of Modern Physics B

IS - 25-26

ER -

Collective modes of trapped interacting bosons

Abstract

Access to Document

Other files and links

Fingerprint

Cite this