Superfluidity in the absence of kinetics in spin-orbit-coupled optical lattices. Hui, H., Y., Zhang, Y., Zhang, C., & Scarola, V., W. Physical Review A, 95(3):33603, 3, 2017. ![Superfluidity in the absence of kinetics in spin-orbit-coupled optical lattices [link]](https://bibbase.org/img/filetypes/link.svg "link")
Website doi abstract bibtex 5 downloads At low temperatures bosons typically condense to minimize their single-particle kinetic energy while interactions stabilize superfluidity. Optical lattices with artificial spin-orbit coupling challenge this paradigm because here kinetic energy can be quenched in an extreme regime where the single-particle band flattens. To probe the fate of superfluidity in the absence of kinetics we construct and numerically solve interaction-only tight-binding models in flat bands. We find that novel superfluid states arise entirely from interactions operating in quenched kinetic energy bands, thus revealing a distinct and unexpected condensation mechanism. Our results have important implications for the identification of quantum condensed phases of ultracold bosons beyond conventional paradigms.
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abstract = {At low temperatures bosons typically condense to minimize their single-particle kinetic energy while interactions stabilize superfluidity. Optical lattices with artificial spin-orbit coupling challenge this paradigm because here kinetic energy can be quenched in an extreme regime where the single-particle band flattens. To probe the fate of superfluidity in the absence of kinetics we construct and numerically solve interaction-only tight-binding models in flat bands. We find that novel superfluid states arise entirely from interactions operating in quenched kinetic energy bands, thus revealing a distinct and unexpected condensation mechanism. Our results have important implications for the identification of quantum condensed phases of ultracold bosons beyond conventional paradigms.},
bibtype = {article},
author = {Hui, Hoi Yin and Zhang, Yongping and Zhang, Chuanwei and Scarola, V. W.},
doi = {10.1103/PhysRevA.95.033603},
journal = {Physical Review A},
number = {3}
}
Downloads: 5
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