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arXiv · 2412.17443

Emergence of nonequilibrium Lieb excitations in periodically driven strongly interacting bosons

Hoshu Hiyane·Giedrius Žlabys·Thomas Busch·Shohei Watabe
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Abstract

We study the exact nonequilibrium spectral function of a gas of strongly correlated Tonks-Girardeau bosons subjected to a strong periodic drive. Utilizing the theory of Floquet spectral function in conjunction with the Bose-Fermi mapping theorem, we show that nonequilibrium Lieb modes emerge if the underlying mapped fermions form a Floquet-Fermi sea. In the low-frequency regime, the exact analysis reveals the emergence of characteristic linear Lieb excitations for the bosonic system, while the underlying mapped fermions displays the wide Dirac-like linear dispersion.

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Hoshu Hiyane, Giedrius Žlabys, Thomas Busch, Shohei Watabe. 2024-12-23. Emergence of nonequilibrium Lieb excitations in periodically driven strongly interacting bosons. https://arxiv.org/abs/2412.17443

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