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Ground state correlations in a trapped quasi one-dimensional Bose gas

Walser, Reinhold (2004)
Ground state correlations in a trapped quasi one-dimensional Bose gas.
In: Optics Communications, 243 (1-6)
doi: 10.1016/j.optcom.2004.11.043
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

We review the basic concepts of a non-equilibrium kinetic theory of a trapped bosonic gas. By extending the successful mean-field concept of the Gross–Pitaevskii equation with the effects of non-local, two particle quantum correlations, one obtains a renormalized binary interaction and allows for the dynamic establishment of non-classical many-particle quantum correlations. These concepts are illustrated by self-consistent numerical calculations of the first- and second-order ground state quantum correlations of a harmonically trapped, quasi one-dimensional bosonic gas. We do find a strong suppression of the density fluctuations or, in other words, an enhanced number squeezing with decreasing particle density.

Typ des Eintrags: Artikel
Erschienen: 2004
Autor(en): Walser, Reinhold
Art des Eintrags: Bibliographie
Titel: Ground state correlations in a trapped quasi one-dimensional Bose gas
Sprache: Englisch
Publikationsjahr: 21 Dezember 2004
Verlag: Elsevier
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Optics Communications
Jahrgang/Volume einer Zeitschrift: 243
(Heft-)Nummer: 1-6
DOI: 10.1016/j.optcom.2004.11.043
Kurzbeschreibung (Abstract):

We review the basic concepts of a non-equilibrium kinetic theory of a trapped bosonic gas. By extending the successful mean-field concept of the Gross–Pitaevskii equation with the effects of non-local, two particle quantum correlations, one obtains a renormalized binary interaction and allows for the dynamic establishment of non-classical many-particle quantum correlations. These concepts are illustrated by self-consistent numerical calculations of the first- and second-order ground state quantum correlations of a harmonically trapped, quasi one-dimensional bosonic gas. We do find a strong suppression of the density fluctuations or, in other words, an enhanced number squeezing with decreasing particle density.

Freie Schlagworte: Quasi one-dimensional Bose gas, Ground state correlations, Hartree-Fork-Bogoliubov
Fachbereich(e)/-gebiet(e): 05 Fachbereich Physik
05 Fachbereich Physik > Institut für Angewandte Physik
05 Fachbereich Physik > Institut für Angewandte Physik > Theorie kalter Quantengase, Quantenoptik, Technische Optik
05 Fachbereich Physik > Institut für Angewandte Physik > Theoretische Quantendynamik
05 Fachbereich Physik > Institut für Angewandte Physik > Theoretische Quantenphysik
Hinterlegungsdatum: 22 Jun 2021 07:05
Letzte Änderung: 06 Jul 2022 09:48
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