Emergence of nonequilibrium Lieb excitations in periodically driven strongly interacting bosons

• URL: http://arxiv.org/abs/2412.17443v1
• Date: Mon, 23 Dec 2024 10:06:21 GMT
• Title: Emergence of nonequilibrium Lieb excitations in periodically driven strongly interacting bosons
• Authors: Hoshu Hiyane, Giedrius Žlabys, Thomas Busch, Shohei Watabe,
• Abstract summary: We study the exact nonequilibrium spectral function of a gas of strongly correlated Tonks-Girardeau bosons subjected to a strong periodic drive.<n>We show that nonequilibrium Lieb modes emerge if the underlying mapped fermions form a Floquet-Fermi sea.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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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