English

Photon-induced sideband transitions in a many-body Landau-Zener process

Quantum Gases 2014-09-29 v1

Abstract

We investigate the many-body Landau-Zener (LZ) process in a two-site Bose-Hubbard model driven by a time-periodic field. We find that the driving field may induce sideband transitions in addition to the main LZ transitions. These photon-induced sideband transitions are a signature of the photon-assisted tunneling in our many-body LZ process. In the strong interaction regime, we develop an analytical theory for understanding the sideband transitions, which is confirmed by our numerical simulation. Furthermore, we discuss the quantization of the driving field. In the effective model of the quantized driving field, the sideband transitions can be understood as the LZ transitions between states of different "photon" numbers.

Keywords

Cite

@article{arxiv.1404.3792,
  title  = {Photon-induced sideband transitions in a many-body Landau-Zener process},
  author = {Honghua Zhong and Qiongtao Xie and Jiahao Huang and Xizhou Qin and Haiming Deng and Jun Xu and Chaohong Lee},
  journal= {arXiv preprint arXiv:1404.3792},
  year   = {2014}
}

Comments

7 pages, 4 figures