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费米超流气体的非线性Rosen-Zener隧穿
  • ISSN号：1000-3290
  • 期刊名称：《物理学报》
  • 时间：0
  • 分类：O175.26[理学—数学;理学—基础数学]
  • 作者机构：[1]西北师范大学物理与电子工程学院 甘肃省原子分子物理与功能材料重点实验室,兰州730070, [2]东莞理工学院电子工程学院,东莞523808
  • 相关基金：国家自然科学基金（批准号：10725521 91021021 10875098）; 国家重点基础研究发展计划（批准号：2007CB814800 2011CB921503）; 西北师范大学自然科学基金（批准号：NWNU-KJCXGC-03-48）资助的课题
作者： 蒙红娟[1], 杨阳[1], 王文元[1], 祁鹏堂[1], 马云云[1], 马莹[1], 王善进[2], 段文山[1]
关键词： 费米超流气体, Rosen-Zener隧穿, Fermi superfluid gases, Rosen-Zener transition
中文摘要：

以非线性Rosen-Zener隧穿理论为基础,用平均场近似的方法,通过考虑高阶非线性项的影响,研究了非线性两能级系统中费米超流气体的Rosen-Zener隧穿现象.研究发现粒子间的非线性相互作用能够显著地影响量子隧穿.分别在快扫描极限和绝热极限的条件下,解释了Rosen-Zener隧穿现象,并给出了矩形振荡周期与非线性参数之间的依赖关系.这为更深入认识费米气体的基本属性提供了理论基础.

英文摘要：

By considering the contribution of the higher order term representing the lowest approximation of beyond mean field correction and taking Roser-Zener tunneling as the underling process,we study the nonlinear Rosen-Zener transition of Fermi superfluid gas in a two-level system.We find that the nonlinearity can affect the quantun trasition in the fast scan limit and the adiabatic limit.We also derive the analytical expression for the of rectangular oscillation period dependent on nonlinear parameter.This provides a theoretical basis for a deeper understanding of the basis properties of Fermi gases.

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期刊信息
  • 《物理学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院物理研究所
  • 主编：欧阳钟灿
  • 地址：北京603信箱(中国科学院物理研究所)
  • 邮编：100190
  • 邮箱：apsoffice@iphy.ac.cn
  • 电话：010-82649026
  • 国际标准刊号：ISSN：1000-3290
  • 国内统一刊号：ISSN：11-1958/O4
  • 邮发代号:2-425
  • 获奖情况:
  • 1999年首届国家期刊奖,2000年中科院优秀期刊特等奖,2001年科技期刊最高方阵队双高期刊居中国期刊第12位
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  • 被引量:49876