Roles of Collective Excitations in the Anomalous Fluctuations of One-Dimensional Interacting Bose-Condensed Gases

Chin. Phys. Lett.

2003, Vol. 20

Issue (10): 1672-1673 DOI:

Original Articles

Roles of Collective Excitations in the Anomalous Fluctuations of One-Dimensional Interacting Bose-Condensed Gases

LIU Shu-Juan;XIONG Hong-Wei;XU Zhi-Jun;HUANG Lin

Department of Applied Physics, Zhejiang University of Technology, Hangzhou 310032

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LIU Shu-Juan, XIONG Hong-Wei, XU Zhi-Jun et al 2003 Chin. Phys. Lett. 20 1672-1673

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Abstract The particle-number fluctuations due to collective excitations are calculated for a one-dimensional interacting Bose-condensed gas confined in a harmonic potential. By using the Thomas-Fermi
approximation, the behaviour of the anomalous fluctuations is found to be <δ²N₀> ～ N^10/3/( ln N)² with N being the total number of particles.

Keywords: 03.75.Fi 05.30.Jp

Published: 01 October 2003

PACS:	03.75.Fi
	05.30.Jp	(Boson systems)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2003/V20/I10/01672

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