Photoinduced $\eta$-pairing in One-dimensional Mott Insulators

Abstract

Employing the density-matrix renormalization group technique in the matrix-product-state representation, we investigate the photoexcited superconducting correlations induced by the $\eta$-pairing mechanism in the half-filled Hubbard chain. We estimate the characteristic pair correlation function and verify the accuracy of our numerical results by comparison with exact-diagonalization data for small systems. The optimal parameter set of the pump that most enhances the $\eta$-pair correlations, is calculated in the strong-coupling regime. For such a pump, we explore the possibility of quasi-long-range order.

arXiv comment6 pages, 3 figures, contributions to SCES 2019

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Cited by in corpus (7)

• Photoinduced $\eta$-pairing at finite temperatures
• Nonequilibrium dynamics in pumped Mott insulators
• Superconductivity and charge density wave under a time-dependent periodic field in the one-dimensional attractive Hubbard model
• Pump-probe spectroscopy of the one-dimensional extended Hubbard model at half filling
• Characterization of photoexcited states in the half-filled one-dimensional extended Hubbard model assisted by machine learning
• Photoinduced pairing in Mott insulators
• Radiative Higgs mode in photoinduced $\eta$ pairs