Coherent matter waves emerging from Mott-insulators
摘要
We study the formation of (quasi-)coherent matter waves emerging from a Mott insulator for strongly interacting bosons on a one-dimensional lattice. It has been shown previously that a quasi-condensate emerges at momentum k=\pi/2a, where a is the lattice constant, in the limit of infinitely strong repulsion (hard-core bosons). Here we show that this phenomenon persists for all values of the repulsive interaction that lead to a Mott insulator at a commensurate filling. The non-equilibrium dynamics of hard-core bosons is treated exactly by means of a Jordan-Wigner transformation, and the generic case is studied using a time-dependent density matrix renormalization group technique. Different methods for controlling the emerging matter wave are discussed.
引用
@article{arxiv.cond-mat/0606155,
title = {Coherent matter waves emerging from Mott-insulators},
author = {K. Rodriguez and S. R. Manmana and M. Rigol and R. M. Noack and A. Muramatsu},
journal= {arXiv preprint arXiv:cond-mat/0606155},
year = {2017}
}
备注
20 pages, 11 figures. Published version