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Photoinduced pairing in Mott insulators

Satoshi Ejima, Holger Fehske

SciPost Phys. Proc. 11, 009 (2023) · published 5 June 2023

Proceedings event

International Conference on Strongly Correlated Electron Systems


Utilizing time-evolution techniques in (infinite) matrix-product-state representation, we study the non-equilibrium dynamics of driven Mott insulators and demonstrate photoinduced $\eta$ pairing directly in the thermodynamic limit. Analyzing the time evolution of the corresponding pairing correlations, we determine the optimal laser pump parameters for which long-range $\eta$-pairing becomes dominant after pulse irradiation. The time-dependent photoemission spectra for this optimal pump parameter set show clear signatures of the photoinduced insulator-to-metal phase transition related to the formation of $\eta$ pairs.

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