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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