Bose-Einstein condensation transition studies for atoms confined in Laguerre-Gaussian laser modes

被引：2

作者：

Akin, T. G. ^{[1
]}

Kennedy, Sharon ^{[1
]}

Dribus, Ben ^{[2
]}

Marzuola, Jeremy L. ^{[3
]}

Johnson, Lise ^{[4
]}

Alexander, Jason ^{[5
]}

Abraham, E. R. I. ^{[1
]}

机构：

[1] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA

[2] Louisiana State Univ, Baton Rouge, LA 70803 USA

[3] Univ N Carolina, Dept Math, Chapel Hill, NC 27599 USA

[4] Univ Washington, Dept Neurol Surg, Seattle, WA 98195 USA

[5] USA, Cold Atom Opt Grp, Res Lab, Adelphi, MD USA

来源：

OPTICS COMMUNICATIONS | 2012年 / 285卷 / 01期

关键词：

Laguerre-Gaussian beams; Bose-Einstein condensation; Atom traps; Laser cooling and trapping; Vorticies; GROUND-STATE; VORTICES; TRAP;

D O I：

10.1016/j.optcom.2011.09.011

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Multiply-connected traps for cold, neutral atoms fix vortex cores of quantum gases. Laguerre-Gaussian laser modes are ideal for such traps due to their phase stability. We report theoretical calculations of the Bose-Einstein condensation transition properties and thermal characteristics of neutral atoms trapped in multiply connected geometries formed by Laguerre-Gaussian (LG(p)(l)) beams. Specifically, we consider atoms confined to the anti-node of a LG(0)(1) laser mode detuned to the red of an atomic resonance frequency, and those confined in the node of a blue-detuned LG(1)(1) beam. We compare the results of using the full potential to those approximating the potential minimum with a simple harmonic oscillator potential. We find that deviations between calculations of the full potential and the simple harmonic oscillator can be up to 3%-8% for trap parameters consistent with typical experiments. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：84 / 89

页数：6

共 27 条

[1] Observation of vortex lattices in Bose-Einstein condensates [J].

Abo-Shaeer, JR ;

Raman, C ;

Vogels, JM ;

Ketterle, W .

SCIENCE, 2001, 292 (5516) :476-479

[2]

Akin T.G., MATH NOTEBOOK BOSE E

[3] ORBITAL ANGULAR-MOMENTUM OF LIGHT AND THE TRANSFORMATION OF LAGUERRE-GAUSSIAN LASER MODES [J].

ALLEN, L ;

BEIJERSBERGEN, MW ;

SPREEUW, RJC ;

WOERDMAN, JP .

PHYSICAL REVIEW A, 1992, 45 (11) :8185-8189

[4] Atomic-phase interference devices based on ring-shaped Bose-Einstein condensates: Two-ring case [J].

Anderson, BP ;

Dholakia, K ;

Wright, EM .

PHYSICAL REVIEW A, 2003, 67 (03) :8

[5]

[Anonymous], 2008, TITL MATH ED VERS 7

[6] Bosen-Einstein condensates in 'giant' toroidal magnetic traps [J].

Arnold, AS ;

Riis, E .

JOURNAL OF MODERN OPTICS, 2002, 49 (5-6) :959-964

[7] BOSE-EINSTEIN CONDENSATION IN AN EXTERNAL POTENTIAL [J].

BAGNATO, V ;

PRITCHARD, DE ;

KLEPPNER, D .

PHYSICAL REVIEW A, 1987, 35 (10) :4354-4358

[8] All-optical formation of an atomic Bose-Einstein condensate [J].

Barrett, MD ;

Sauer, JA ;

Chapman, MS .

PHYSICAL REVIEW LETTERS, 2001, 87 (01)

[9] Stationary arrays of vortices in Bose-Einstein condensates confined by a toroidal trap [J].

Capuzzi, P. ;

Jezek, D. M. .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2009, 42 (14)

[10] Theory of Bose-Einstein condensation in trapped gases [J].

Dalfovo, F ;

Giorgini, S ;

Pitaevskii, LP ;

Stringari, S .

REVIEWS OF MODERN PHYSICS, 1999, 71 (03) :463-512

← 1 2 3 →