论文标题
在PT对称环境下，孤立的玻色网凝结物的热化
Thermalization of isolated Bose-Einstein condensate under a PT-symmetric environment
论文作者
论文摘要
特征态热假说（ETH）的假设表明，由于系统的哈密顿量的各个特征态，热化发生。但是，ETH对导致热化的动力学没有启示。在本文中，我们观察到限制在嵌入在谐波陷阱中的光学晶格电位中的Bose-Einstein冷凝物（BEC）的热化。这种光学晶格电位为振荡BEC提供了局部摩擦。 BEC的时间密度图中的扩散显示了BEC的热化。此外，我们观察到，PT对称电位的存在极大地影响了BEC动力学和系统的热化。 PT对称电势的存在提供了一种操纵BEC的平均位置到所需位置和所需时间长度的方法。
The postulates of the eigenstate thermalization hypothesis (ETH) express that thermalization occurs due to the individual eigenstate of the system's Hamiltonian. But the ETH put no light on the dynamics that lead toward thermalization. In this paper, we observe the thermalization of a Bose-Einstein Condensate (BEC) confined in an optical lattice potential that is embedded in the harmonic trap. Such optical lattice potential offers local friction to the oscillating BEC. The spread in the temporal density plot of BEC shows the thermalization of the BEC. Moreover, we observe that the presence of a PT-symmetric potential greatly influences the BEC dynamics and the thermalization of the system. The presence of a PT-symmetric potential offers a way to manipulate the mean position of the BEC to the desired location and for a desired length of time.
