Coherence length for a trapped Bose gas

S M  Barnert; S  Franke-Arnold; A S  Arnold; C  Baxter; Aidan Arnold

doi:10.1088/0953-4075/33/19/325

Coherence length for a trapped Bose gas

S M Barnert, S Franke-Arnold, A S Arnold, C Baxter, Aidan Arnold

Physics

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

18 Citations (Scopus)

Abstract

Matter waves can be assigned a coherence length analogous to the corresponding quantity in optics. We show that there is a dramatic increase in coherence length associated with the appearance of Bose-Einstein condensation in a trapped ideal Bose gas. The large increase in coherence length occurs even for temperatures just below the critical temperature at which only a small proportion of the trapped atoms is to be found in the ground state.

Original language	English
Pages (from-to)	4177-4191
Number of pages	15
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	33
Issue number	19
DOIs	https://doi.org/10.1088/0953-4075/33/19/325
Publication status	Published - 14 Oct 2000

Keywords

einstein condensation
quantum state
matter
atom
coherence length

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10.1088/0953-4075/33/19/325

Cite this

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abstract = "Matter waves can be assigned a coherence length analogous to the corresponding quantity in optics. We show that there is a dramatic increase in coherence length associated with the appearance of Bose-Einstein condensation in a trapped ideal Bose gas. The large increase in coherence length occurs even for temperatures just below the critical temperature at which only a small proportion of the trapped atoms is to be found in the ground state.",

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AU - Barnert, S M

AU - Franke-Arnold, S

AU - Arnold, A S

AU - Baxter, C

AU - Arnold, Aidan

PY - 2000/10/14

Y1 - 2000/10/14

N2 - Matter waves can be assigned a coherence length analogous to the corresponding quantity in optics. We show that there is a dramatic increase in coherence length associated with the appearance of Bose-Einstein condensation in a trapped ideal Bose gas. The large increase in coherence length occurs even for temperatures just below the critical temperature at which only a small proportion of the trapped atoms is to be found in the ground state.

AB - Matter waves can be assigned a coherence length analogous to the corresponding quantity in optics. We show that there is a dramatic increase in coherence length associated with the appearance of Bose-Einstein condensation in a trapped ideal Bose gas. The large increase in coherence length occurs even for temperatures just below the critical temperature at which only a small proportion of the trapped atoms is to be found in the ground state.

KW - einstein condensation

KW - quantum state

KW - matter

KW - atom

KW - coherence length

U2 - 10.1088/0953-4075/33/19/325

DO - 10.1088/0953-4075/33/19/325

M3 - Article

SN - 0953-4075

VL - 33

SP - 4177

EP - 4191

JO - Journal of Physics B: Atomic, Molecular and Optical Physics

JF - Journal of Physics B: Atomic, Molecular and Optical Physics

IS - 19

ER -

Coherence length for a trapped Bose gas

Abstract

Keywords

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