Interacting fermions in synthetic non-Abelian gauge fields

被引:0
作者
Shenoy, Vijay B. [1 ]
Vyasanakere, Jayantha P. [1 ]
Ghosh, Sudeep Kumar [1 ]
机构
[1] Indian Inst Sci, Dept Phys, Ctr Condensed Matter Theory, Bangalore 560012, Karnataka, India
来源
CURRENT SCIENCE | 2012年 / 103卷 / 05期
关键词
Cold atom systems; fermions; rashbons; synthetic gauge fields; MOTT INSULATOR; ULTRACOLD; PHYSICS; TRANSITION;
D O I
暂无
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Generation and study of synthetic gauge fields has enhanced the possibility of using cold atom systems as quantum emulators of condensed matter Hamiltonians. In this article we describe the physics of interacting spin -1/2 fermions in synthetic non-Abelian gauge fields which induce a Rashba spin-orbit interaction on the motion of the fermions. We show that the fermion system can evolve to a Bose-Einstein condensate of a novel boson which we call rashbon. The rashbon-rashbon interaction is shown to be independent of the interaction between the constituent fermions. We also show that spin-orbit coupling can help enhancing superfluid transition temperature of weak superfluids to the order of Fermi temperature. A non-Abelian gauge field, when used in conjunction with another potential, can generate interesting Hamiltonians such as that of a magnetic monopole.
引用
收藏
页码:525 / 535
页数:11
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