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Matter-Wave Solitons in Two-Dimensional Bose-Einstein Condensates with Time-Dependent Scattering Length in a Harmonic Trap
  • ISSN号:0253-6102
  • 期刊名称:《理论物理通讯:英文版》
  • 时间:0
  • 分类:O4[理学—物理] Q939.1[生物学—微生物学]
  • 作者机构:[1]Nonlinear Science Center and Department of Mathematics, Ningbo University, Ningbo 315211, China
  • 相关基金:Supported by NSFC under Grant Nos. 11041003, 10735030, 10874235, 10934010, 60978019, the NKBRSFC under Grant Nos. 2009CB930701, 2010CB922904, and 2011CB921500, Zhejiang Provincial NSF under Grant No. Y6090592, Ningbo Natural Science Foundation under Grant Nos. 2010A610095, 2010A610103, and 2009B21003, and K.C. Wong Magna Fund in Ningbo University
中文摘要:

<正> We present three families of one-soliton solutions for (2+l)-dimensional Gross-Pitaevskii equation withboth time-dependent scattering length and gain or loss in a harmonic trap.Then we investigate the dynamics of thesesolitons in Bose-Einstein condensates (BECs) by some selected control functions.Our results show that the intensitiesof these solitons first increase rapidly to the condensation peak,then decay very slowly to the background;thus thelifetime of a bright soliton,a train of bright solitons and a dark soliton in BECs can be all greatly extended.Our resultsoffer a useful method for observing matter-wave solitons in BECs in future experiments.

英文摘要:

We present three families of one-soliton solutions for (2+1)-dimensional Gross-Pitaevskii equation with both time-dependent scattering length and gain or loss in a harmonic trap. Then we investigate the dynamics of these solitons in Bose-Einstein condensate8 (BECs) by some selected control functions. Our results show that the intensities of these solitons first increase rapidly to the condensation peak, then decay very slowly to the background; thus the lifetime of a bright soliton, a train of bright solitons and a dark soliton in BECs can be all greatly extended. Our results offer a useful method for observing matter-wave solitons in BECs in future experiments.

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期刊信息
  • 《理论物理通讯:英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中科院理论物理所 中国物理学会
  • 主编:孙昌浦
  • 地址:北京2735邮政信箱 中国科学院理论物理研究所编辑部
  • 邮编:100190
  • 邮箱:ctp@itp.ac.cn
  • 电话:010-62551495 62541813 62550630
  • 国际标准刊号:ISSN:0253-6102
  • 国内统一刊号:ISSN:11-2592/O3
  • 邮发代号:
  • 获奖情况:
  • 首届国家期刊奖,中国科学院优秀期刊特别奖,国家期刊奖百种重点期刊,中国期刊方阵“双高”期刊
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  • 被引量:342