Photoinduced $\eta$-pairing correlation in the Hubbard ladder

Abstract

We investigate the staggered correlation of the on-site pairs, the so-called $\eta$-pairing correlation, induced by pump electric fields in the Hubbard model on the ladder lattice. Employing the time-evolution method based on exact diagonalization, we compute the photoinduced $\eta$-pairing correlation with different strengths of the interchain hopping. When the pump field is polarized along the chain direction, the $\eta$-pairing correlation is noticeably induced in the weakly coupled double-chain region, where the pairing property is similar to the $\eta$ pairing in the single-chain Hubbard model. On the other hand, the pump field polarized along the rung direction prominently induces the $\eta$-pairing correlation in the strong interchain coupling regime, where the pair correlations developing across rungs strongly contribute to the $\eta$ pairing. Based on the local rung approximation, which is valid in the strong interchain coupling regime, we discuss the origin of the photoinduced pair.

arXiv comment7 pages, 6 figures

References in corpus (25)

• Universal High-Frequency Behavior of Periodically Driven Systems: from Dynamical Stabilization to Floquet Engineering
• Atomic quantum gases in periodically driven optical lattices
• Floquet Engineering of Quantum Materials
• Light-induced anomalous Hall effect in graphene
• An optically stimulated superconducting-like phase in K3C60 far above equilibrium Tc
• Superconductivity near 80 Kelvin in single crystals of La3Ni2O7 under pressure
• Nonthermal pathways to ultrafast control in quantum materials
• Ultrafast optical spectroscopy of strongly correlated materials and high-temperature superconductors: a non-equilibrium approach
• Bilayer two-orbital model of La${}_3$Ni${}_2$O${}_7$ under pressure
• Properties of lightly doped t-J two-leg ladders
• Photoinduced $\eta$ Pairing in the Hubbard Model
• $\eta$--paired superconducting hidden phase in photodoped Mott insulators
• Pair correlations in the two-orbital Hubbard ladder: Implications on superconductivity in the bilayer nickelate La${}_3$Ni${}_2$O${}_7$
• Strong pairing in mixed dimensional bilayer antiferromagnetic Mott insulators
• $\eta$-pairing superfluid in periodically-driven fermionic Hubbard model with strong attraction
• Dynamical order and superconductivity in a frustrated many-body system
• Enhancement of Local Pairing Correlations in Periodically Driven Mott Insulators
• Enhanced charge order in a photoexcited one-dimensional strongly correlated system
• Exploring nonequilibrium phases of photo-doped Mott insulators with Generalized Gibbs ensembles
• Dynamical Properties of Two Coupled Hubbard Chains at Half-filling
• Photoinduced $\eta$-pairing at finite temperatures
• Charge stiffness and long-range correlation in the optically induced $\eta$-pairing state of the one-dimensional Hubbard model
• Spin, charge and $\eta$-spin separation in one-dimensional photo-doped Mott insulators
• Analytical Solution for the Steady States of the Driven Hubbard model
• Photoinduced correlated electron dynamics in a two-leg ladder Hubbard system

Cited by in corpus (4)

• Photo-induced nonequilibrium states in Mott insulators
• Floquet engineering of effective pairing interactions in a doped band insulator
• Distinct charge and spin recovery dynamics in a photo-excited Mott insulator
• Electronic modes induced by spin and charge perturbations in Mott and Kondo insulators