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arXiv · 1904.00857

Enhancement of Local Pairing Correlations in Periodically Driven Mott Insulators

Francesco Peronaci·Olivier Parcollet·Marco Schiró
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Abstract

We investigate a model for a Mott insulator in presence of a time-periodic modulated interaction and a coupling to a thermal reservoir. The combination of drive and dissipation leads to non-equilibrium steady states with a large number of doublon excitations, well above the maximum thermal-equilibrium value. We interpret this effect as an enhancement of local pairing correlations, providing analytical arguments based on a Floquet Hamiltonian. Remarkably, this Hamiltonian shows a tendency to develop long-range staggered superconducting correlations. This suggests the possibility of realizing the elusive eta-pairing phase in driven-dissipative Mott Insulators.

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Francesco Peronaci, Olivier Parcollet, Marco Schiró. 2020-02-06. Enhancement of Local Pairing Correlations in Periodically Driven Mott Insulators. https://doi.org/10.1103/physrevb.101.161101

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