Nonequilibrium Two-Particle Self-Consistent Approach

Abstract

We present the nonequilibrium implementation of the two-particle self-consistent (TPSC) approach, which has been shown to provide a reliable equilibrium description of interacting lattice systems in the weak- and intermediate-correlation regime. This method captures the effects of local and nonlocal correlations in two- and higher-dimensional systems and satisfies the Mermin-Wagner theorem. We demonstrate the versatility of nonequilibrium TPSC with calculations of the time-dependent spin and charge response functions and the evolution of effective temperatures extracted from different correlation functions, after interaction ramps in the two-dimensional Hubbard model.

6 pages, 3 figures

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Cited by in corpus (12)

• Multiscale space-time ansatz for correlation functions of quantum systems based on quantics tensor trains
• Photo-induced nonequilibrium states in Mott insulators
• Nonlocal corrections to dynamical mean-field theory from the two-particle self-consistent method
• An Improved Two-Particle Self-Consistent Approach
• Dynamical Mean Field Theory extension to the nonequilibrium Two-Particle Self-Consistent approach
• Spin Hall conductivity in the Kane-Mele-Hubbard model at finite temperature
• Memory-Efficient Nonequilibrium Green's Function Framework Built On Quantics Tensor Trains
• Real-frequency TPSC+DMFT investigation of the square-lattice Hubbard model
• Spin correlations in the bilayer Hubbard model with perpendicular electric field
• Electron-magnon dynamics triggered by an ultrashort laser pulse: A real-time Dual $GW$ study
• Antiferromagnetic pseudogap in the two-dimensional Hubbard model deep in the renormalized classical regime
• Multi-orbital two-particle self-consistent approach -- strengths and limitations