Macroscopic atom-molecule dark state and its collective excitations in fermionic systems

被引：10

作者：

Robertson, Andrew ^{[1
]}

Jiang, Lei ^{[2
]}

Pu, Han ^{[2
]}

Zhang, Weiping ^{[3
]}

Ling, Hong Y. ^{[1
]}

机构：

[1] Rowan Univ, Dept Phys & Astron, Glassboro, NJ 08028 USA

[2] Rice Univ, Rice Quantum Inst, Dept Phys & Astron, Houston, TX 77251 USA

[3] E China Normal Univ, Dept Phys, State Key Lab Precis Spectroscopy, Shanghai 200062, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.99.250404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that a robust macroscopic atom-molecule dark state can exist in fermionic systems, which represents a coherent superposition between the ground molecular Bose-Einstein condensates and the atomic BCS paired state. We take advantage of the tunability offered by external laser fields, and explore this superposition for demonstrating coherent oscillations between ground molecules and atom pairs. We interpret the oscillation frequencies in terms of the collective excitations of the dark state.

引用

页数：4

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