First-order quantum phase transition driven by rotons in a gaseous Bose-Einstein condensate irradiated by a laser

被引：4
|
作者：
Minguzzi, A
March, NH
Tosi, MP
机构：
[1] Scuola Normale Super Pisa, NEST, INFM, I-56126 Pisa, Italy
[2] Scuola Normale Super Pisa, Class Sci, I-56126 Pisa, Italy
[3] Univ Antwerp, RUCA, Dept Phys, B-2020 Antwerp, Belgium
[4] Univ Oxford, Oxford, England
来源：
PHYSICAL REVIEW A | 2004年 / 70卷 / 02期
关键词：
D O I：
10.1103/PhysRevA.70.025601
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
O'Dell in recent work [Phys. Rev. Lett. 90, 110402 (2003)] have proposed that laser-induced dipole-dipole interactions may drive a gaseous Bose-Einstein condensate to an instability against a periodic density modulation. We discuss the possibility that the instability is preceded by a first-order quantum phase transition to a modulated state.
引用
收藏
页码：025601 / 1
页数：3
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