Angular spin-orbit coupling in cold atoms
Angular spin-orbit coupling in cold atoms
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DOI:
10.1103/physreva.91.033630
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发表时间:
2014-11
影响因子:
2.9
通讯作者:
M. Demarco;H. Pu
中科院分区:
文献类型:
--
作者:
M. Demarco;H. Pu
We propose coupling two internal atomic states using a pair of Raman beams operated in Laguerre-Gaussian laser modes with unequal phase windings. This generates a coupling between the atom's pseudo-spin and its orbital angular momentum. We analyze the single-particle properties of the system using realistic parameters and provide detailed studies of the spin texture of the ground state. Finally, we consider a weakly interacting atomic condensate subject to this angular spin-orbit coupling and show how the inter-atomic interactions modifies the single-particle physics.