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Floquet-induced superfluidity with periodically modulated interactions of two-species hardcore bosons in a one-dimensional optical lattice
oleh: Tao Wang (汪涛), Shijie Hu (胡时杰), Sebastian Eggert, Michael Fleischhauer, Axel Pelster, Xue-Feng Zhang (张学锋)
Format: | Article |
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Diterbitkan: | American Physical Society 2020-03-01 |
Deskripsi
We consider two species of hard-core bosons with density-dependent hopping in a one-dimensional optical lattice, for which we propose experimental realizations using time-periodic driving. The quantum phase diagram for half-integer filling is determined by combining different advanced numerical simulations with analytic calculations. We find that a reduction of the density-dependent hopping induces a Mott-insulator to superfluid transition. For negative hopping, a gauge-dressed superfluid state is found where one species induces a gauge phase of the other species, which leads to a superfluid phase of gauge-paired particles. The corresponding experimental signatures are discussed.