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Journal Article

Enhancement of local pairing correlations in periodically driven Mott insulators

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Peronaci,  Francesco
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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1904.00857.pdf
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Peronaci, F., Parcollet, O., & Schiro, M. (2020). Enhancement of local pairing correlations in periodically driven Mott insulators. Physical Review B, 101(16): 161101. doi:10.1103/PhysRevB.101.161101.


Cite as: https://hdl.handle.net/21.11116/0000-0008-AC17-D
Abstract
We investigate a model for a Mott insulator in the presence of a time-periodic modulated interaction and a coupling to a thermal reservoir. The combination of drive and dissipation leads to nonequilibrium 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.