Coherent spin mixing via spin-orbit coupling in Bose gases

J. Cabedo, J. Claramunt, A. Celi, Y. Zhang, V. Ahufinger, J. Mompart

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Resum

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.

Idioma originalEnglish
Número d’article063633
Nombre de pàgines11
RevistaPhysical Review A
Volum100
Número6
DOIs
Estat de la publicacióPublicada - 23 de des. 2019

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