Combined effects of particle interaction and nonlinear sweep on Landau-Zener transition

被引：19

作者：

Dou, Fu-Quan ^{[1
,2
,3
]}

Li, Sheng-Chang ^{[3
]}

Cao, Hui ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Sci, Dept Phys, Beijing 100081, Peoples R China

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

[3] Inst Appl Phys & Computat Math, Sci & Technol Computat Phys Lab, Beijing 100088, Peoples R China

来源：

PHYSICS LETTERS A | 2011年 / 376卷 / 01期

关键词：

Landau-Zener transition; Nonlinearity; Interference; Asymmetry; BOSE-EINSTEIN CONDENSATE; LEVEL-CROSSINGS; INTERFERENCE; DYNAMICS; MODEL;

D O I：

10.1016/j.physleta.2011.10.034

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the Landau-Zener transition (LZT) of a two-level system with two types of nonlinearity: particle interaction and nonlinear time-dependent energy sweep, both numerically and analytically. Due to the interplay between these two types of nonlinearity, many interesting phenomena in different parameter regions occur, including breakdown of adiabaticity, fade-out of interference phenomenon, and asymmetry of transition probability. The potential experimental observation of transition dynamics in this system is suggested. (C) 2011 Published by Elsevier B.V.

引用

页码：51 / 55

页数：5

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