Photo-induced Tomonaga-Luttinger-like liquid in a Mott insulator

Abstract

Photo-induced metallic states in a Mott insulator are studied for the half-filled, one-dimensional Hubbard model with the time-dependent density matrix renormalization group. An irradiation of strong AC field is found to create a linear dispersion in the optical spectrum (current-current correlation) in the nonequilibrium steady state reminiscent of the Tomonaga-Luttinger liquid for the doped Mott insulator in equilibrium. The spin spectrum in nonequilibrium retains the des Cloizeaux-Pearson mode with the spin velocity differing from the charge velocity. The mechanism of the photocarrier-doping, along with the renormalization in the charge velocity, is analyzed in terms of an effective Dirac model.

5 pages, 5 figures

References in corpus (1)

• Real time evolution using the density matrix renormalization group

Cited by in corpus (6)

• Nonequilibrium Steady State of Photoexcited Correlated Electrons in the Presence of Dissipation
• Parametric instability in periodically driven Luttinger liquids
• Spin, charge and $\eta$-spin separation in one-dimensional photo-doped Mott insulators
• Light-wave coherent control of the insulator-to-metal transition in a strongly correlated material
• Distinct charge and spin recovery dynamics in a photo-excited Mott insulator
• High Harmonic Generation in Two-Dimensional Mott Insulators