Evolutions of matter-wave bright soliton with spatially modulated nonlinearity

被引：0
|
作者：
Cheng, Yongshan [1 ,2 ]
Liu, Fei [2 ]
机构：
[1] Univ Estadual Paulista, Inst Fis Teor, BR-01405900 Sao Paulo, Brazil
[2] Hubei Normal Univ, Dept Phys, Huangshi 435002, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2009年 / 7卷 / 09期
基金：
巴西圣保罗研究基金会;
关键词：
BOSE-EINSTEIN CONDENSATE; DYNAMICS; GASES;
D O I：
10.3788/COL20090709.0834
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The evolution characteristics of a matter-wave bright soliton are investigated by means of the variational approach in the presence of spatially varying nonlinearity. It. is found that, the atom density envelope of the soliton is changed as a result of the spatial variation of the s-wave scattering length. The stable soliton can exist in appropriate initial conditions. The movement of the soliton depends on the sign and value of the coefficient of spatially modulated nonlinearity. These theoretical predictions are confirmed by the full numerical simulations of the one-dimensional Gross-Pitaevskii equation.
引用
收藏
页码：834 / 837
页数：4
相关论文
共 50 条
  • [1] Evolutions of matter-wave bright soliton with spatially modulated nonlinearity
    程永山
    刘飞
    ChineseOpticsLetters, 2009, 7 (09) : 834 - 837
  • [2] Formation of a matter-wave bright soliton
    Khaykovich, L
    Schreck, F
    Ferrari, G
    Bourdel, T
    Cubizolles, J
    Carr, LD
    Castin, Y
    Salomon, C
    SCIENCE, 2002, 296 (5571) : 1290 - 1293
  • [3] Bright matter-wave soliton collisions at narrow barriers
    Helm, J. L.
    Billam, T. P.
    Gardiner, S. A.
    PHYSICAL REVIEW A, 2012, 85 (05):
  • [4] Cesium bright matter-wave solitons and soliton trains
    Meznarsic, Tadej
    Arh, Tina
    Brence, Jure
    Pisljar, Jaka
    Gosar, Katja
    Gosar, Ziga
    Zitko, Rok
    Zupanic, Erik
    Jeglic, Peter
    PHYSICAL REVIEW A, 2019, 99 (03)
  • [5] Dynamics of a matter-wave bright soliton in an expulsive potential
    Carr, L.D.
    Castin, Y.
    Physical Review A - Atomic, Molecular, and Optical Physics, 2002, 66 (06): : 636021 - 636021
  • [6] Dynamical evolutions of matter-wave bright solitons in an inverted parabolic potential
    Chong, Guishu
    Hai, Wenhua
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2007, 40 (01) : 211 - 220
  • [7] Nonlinear atom optics with bright matter-wave soliton trains
    Leung, VYF
    Truscott, AG
    Baldwin, KGH
    PHYSICAL REVIEW A, 2002, 66 (06): : 4
  • [8] Nonlinear atom optics with bright matter-wave soliton trains
    Leung, V.Y.F.
    Truscott, A.G.
    Baldwin, K.G.H.
    Physical Review A - Atomic, Molecular, and Optical Physics, 2002, 66 (06): : 616021 - 616024
  • [9] Elastic scattering of a quantum matter-wave bright soliton on a barrier
    Weiss, Christoph
    Castin, Yvan
    JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2012, 45 (45)
  • [10] Matter-wave solitons and finite-amplitude Bloch waves in optical lattices with spatially modulated nonlinearity
    Zhang, Jie-Fang
    Li, Yi-Shen
    Meng, Jianping
    Wu, Lei
    Malomed, Boris A.
    PHYSICAL REVIEW A, 2010, 82 (03):
12345