Abstract

We study beyond-mean-field properties of interacting spin-1 Bose gases with synthetic Rashba-Dresselhaus spin-orbit coupling at low energies. We derive a many-body Hamiltonian following a tight-binding approximation in quasimomentum space, where the effective spin dependence of the collisions that emerge from spin-orbit coupling leads to dominant correlated tunneling processes that couple the different bound states. We discuss the properties of the spectrum of the derived Hamiltonian and its experimental signatures. In a certain region of the parameter space, the system becomes integrable, and its dynamics becomes analogous to that of a spin-1 condensate with spin-dependent collisions. Remarkably, we find that such dynamics can be observed in existing experimental setups through quench experiments that are robust against magnetic fluctuations.

Authors
J. Cabedo, J. Mompart, V. Ahufinger, Y. Zhang, A. Celi, i J. Claramunt
Citation Key
322
COinS Data

Date Published
2020-02-13 08:13
DOI
10.1103/PhysRevA.100.063633
Pagination
063633
Journal
Phys. Rev. A
URL
https://link.aps.org/doi/10.1103/PhysRevA.100.063633
Volume
100
Year of Publication
2019