Spin-orbit coupling in periodically driven optical lattices

被引：59

作者：

Struck, J. ^{[1
]}

Simonet, J. ^{[1
,2
]}

Sengstock, K. ^{[1
,2
]}

机构：

[1] Univ Hamburg, Inst Laserphys, D-22761 Hamburg, Germany

[2] Univ Hamburg, ZOQ, D-22761 Hamburg, Germany

来源：

PHYSICAL REVIEW A | 2014年 / 90卷 / 03期

关键词：

SIMULATION;

D O I：

10.1103/PhysRevA.90.031601

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a method for the emulation of artificial spin-orbit coupling in a system of ultracold, neutral atoms trapped in a tight-binding lattice. This scheme does not involve near-resonant laser fields, avoiding the heating processes connected to the spontaneous emission of photons. In our case, the necessary spin-dependent tunnel matrix elements are generated by a rapid, spin-dependent, periodic force, which can be described in the framework of an effective, time-averaged Hamiltonian. An additional radio-frequency coupling between the spin states leads to a mixing of the spin bands.

引用

页数：5

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