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首页> 外文会议>2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference >Relaxation to negative temperature breathers in Bose-Einstein Condensates in optical lattices
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Relaxation to negative temperature breathers in Bose-Einstein Condensates in optical lattices

机译：玻格中的玻色-爱因斯坦凝聚物中负温度呼吸的弛豫

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摘要

Localization of Bose-Einstein Condensates (BEC) in optical lattices has been predicted and observed by suitable preparation of the initial atomic packet [1]. In the deep potential limit, the dynamics of the BEC is well described by the Discrete Nonlinear Schrodinger Equation (DNLSE) where the transport mechanism of the atomic density across the lattice is due to tunneling effects. Highly localized states of the atomic density corresponding to discrete breathers can be achieved by progressively removing atoms at the boundaries of the optical lattice [1,2]. Both static breathers with fixed spatial position and travelling breathers can be obtained with this relaxation technique [1,2].
机译：通过适当制备初始原子包[1]，可以预测和观察玻色-爱因斯坦凝聚物（BEC）在光学晶格中的定位。在深电势极限中，BEC的动力学由离散非线性Schrodinger方程（DNLSE）很好地描述，其中原子密度跨晶格的传输机制是由于隧穿效应。可以通过逐步去除光学晶格[1,2]边界上的原子来实现与离散通气相对应的原子密度的高度局部化状态。固定空间位置的静态呼吸器和行进呼吸器均可通过这种放松技术获得[1,2]。

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