Quenches from bosonic Gaussian initial states to the Tonks-Girardeau limit: Stationary states and effects of a confining potential | |
Article | |
关键词: IMPENETRABLE BOSONS; QUANTUM; DYNAMICS; RELAXATION; EXPANSION; GAS; | |
DOI : 10.1103/PhysRevB.95.174303 | |
来源: SCIE |
【 摘 要 】
We consider the general problem of quenching an interacting Bose gas from the noninteracting regime to the strongly repulsive limit described by the Tonks-Girardeau gas with the initial state being a Gaussian ensemble in terms of the bosons. A generic multipoint correlation function in the steady state can be described fully in terms of a Fredholm-like determinant suitable both for a numerical and for an analytical study in certain limiting cases. Finally, we extend the study to the presence of a smooth confining potential showing that, in the thermodynamic limit, the time evolution of the two-point function can be mapped to a classical problem.
【 授权许可】
Free