Probing Stripe Phases in Spin-Orbital-Angular-Momentum Coupled Bose Gases. Chen, X., Peng, S., Zou, P., Liu, X., & Hu, H. Technical Report abstract bibtex We propose that the exotic superfluidity with supersolid properties can be feasibly probed in a two-dimensional weakly interacting Bose gas with spin-orbital-angular-momentum (SOAM) coupling. We determine a ground-state phase diagram including the zero-and nonzero-angular-momentum phases, and large parameter spaces of nontrivial stripe phases. The low-lying collective excitations, i.e., the dipole and monopole modes, exhibit distinct behaviours and reveal an evident violation of Galilean invariance. The probed energetic and dynamic instabilities imply the existence of the stripe phases. The regimes of stripe phases determined from different approaches are self-consistent. Our predictions of the supersolid stripe phase can be check and verified straightforwardly in current 87 Rb and 23 Na atomic experiments.
@techreport{
title = {Probing Stripe Phases in Spin-Orbital-Angular-Momentum Coupled Bose Gases},
type = {techreport},
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created = {2018-11-01T06:34:22.110Z},
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last_modified = {2018-11-01T06:42:40.526Z},
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abstract = {We propose that the exotic superfluidity with supersolid properties can be feasibly probed in a two-dimensional weakly interacting Bose gas with spin-orbital-angular-momentum (SOAM) coupling. We determine a ground-state phase diagram including the zero-and nonzero-angular-momentum phases, and large parameter spaces of nontrivial stripe phases. The low-lying collective excitations, i.e., the dipole and monopole modes, exhibit distinct behaviours and reveal an evident violation of Galilean invariance. The probed energetic and dynamic instabilities imply the existence of the stripe phases. The regimes of stripe phases determined from different approaches are self-consistent. Our predictions of the supersolid stripe phase can be check and verified straightforwardly in current 87 Rb and 23 Na atomic experiments.},
bibtype = {techreport},
author = {Chen, Xiao-Long and Peng, Shi-Guo and Zou, Peng and Liu, Xia-Ji and Hu, Hui}
}
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