Landau-Zener-Stuckelberg-Majorana interference of a spin-orbit-coupled Bose-Einstein condensate

被引：0

作者：

Zhang, Xin-Xin ^{[1
]}

Wang, Wen-Yuan ^{[1
,2
]}

Dou, Fu-Quan ^{[1
]}

机构：

[1] Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China

[2] Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL D | 2021年 / 75卷 / 05期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

DYNAMICS; PHASE;

D O I：

10.1140/epjd/s10053-021-00158-9

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The spin-orbit-coupled (SOC) ultracold atomic gases provide unique opportunities for exploring exotic quantum phases and introduce new capabilities into the quantum simulation. In this paper, we study the coherent control of spin states in SOC Bose-Einstein condensate (BEC) by exploiting and implementing the general concept of Landau-Zener-Stueckelberg-Majorana (LZSM) interference. For a SOC BEC, the Landau-Zener (LZ) transition between the dressed eigenlevels occurs as the BEC is accelerated through the SOC-avoided crossing, which corresponds to a breakdown of the spin momentum locking. In our scheme, two LZ pulses are separated by an intermediate holding period of variable duration. The nice LZSM interference patterns can be generated and controlled by controlling several parameters, corresponding to coherent control of the spin state of the SOC BEC. In particular, the destructive and constructive patterns of LZSM interference are observed and well explained through analytical analysis. Our results suggest a potential application of the LZSM interferometry in calibrating the spin states of a SOC BEC.

引用

页数：7

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