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Register a new userDynamical preparation of an atomic condensate in a Hofstadter band
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We address the challenge of realizing a Floquet-engineered Hofstadter Bose-Einstein condensate (BEC) in an ultracold atomic gas, as a general prototype for Floquet engineering. Motivated by evidence that such a BEC has been observed experimentally, we show, using Gross-Pitaevskii simulations, how it is dynamically realized. Our simulations support the existence of such a Hofstadter BEC through both momentum-space distributions as well as real-space phase correlations. From these simulations, we identify and characterize a multistage evolution, which includes a chaotic intermediate heating stage followed by a spontaneous reentrance to the Floquet-engineered BEC. The observed behavior is reminiscent of evolution in cosmological models, which involves a similar time progression including an intermediate turbulence en route to equilibration.
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