标题： 一维光晶格中的相互作用诱导的异常输运行为 显示英文标题

标题： Interaction-induced anomalous transport behavior in one dimensional optical lattice

摘要： 自旋杂质原子在强相互作用一维(1D)玻色气体中的非平衡动力学在重力场中被研究。 我们表明，由于初始状态的非平衡制备以及杂质原子与其他玻色子之间的相互作用，可能会出现一种反直觉的现象：杂质原子可以在重力场中自动向上传播。 通过使用时间演化块削减(TEBD)方法研究一维强相互作用玻色系统的时间依赖演化，研究了相互作用强度、重力场的梯度以及初始状态的不同配置的影响。 还揭示了这种反直觉现象与排斥束缚对之间的深刻联系。 显示英文摘要

摘要： The non-equilibrium dynamics of spin impurity atoms in a strongly interacting one-dimensional (1D) Bose gas under the gravity field is studied. We show that due to the non-equilibrium preparation of the initial state as well as the interaction between the impurity atoms and other bosons, a counterintuitive phenomenon may emerge: the impurity atoms could propagate upwards automatically in the gravity field . The effects of the strength of interaction, the gradient of the gravity field, as well as the different configurations of the initial state are investigated by studying the time-dependent evolution of the 1D strongly interacting bosonic system using time-evolving block decimation (TEBD) method. A profound connection between this counterintuitive phenomenon and the repulsive bound pair is also revealed.