Probing superfluidity of periodically trapped ultracold atoms in a cavity by transmission spectroscopy

被引：2

作者：

Bhattacherjee, Aranya B. ^{[1
,2
]}

Kumar, Tarun ^{[3
]}

Mohan, Man ^{[3
]}

机构：

[1] Univ Delhi, Dept Phys, ARSD Coll, New Delhi 110021, India

[2] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

[3] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India

来源：

CENTRAL EUROPEAN JOURNAL OF PHYSICS | 2010年 / 8卷 / 05期

关键词：

Bose-Einstein condensate; cavity; optical lattice; OPTICAL LATTICES;

D O I：

10.2478/s11534-009-0158-x

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study a system of periodic Bose-condensed atoms coupled to cavity photons using the input-output formalism of [14]. We show for the first time that the cavity will either act as a through-pass Lorentzian filter when the superfluid fraction of the condensate is minimum, or completely reflect the input field when the superfluid fraction is maximum. We show that by monitoring the ratio between the transmitted field and the reflected field, one can estimate the superfluid fraction.

引用

页码：850 / 853

页数：4

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