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Exploring nonequilibrium phases of photo-doped Mott insulators with Generalized Gibbs ensembles by Murakami, Yuta; Takayoshi, Shintaro; Kaneko, Tatsuya; Sun, Zhiyuan; Golež, Denis; Millis, Andrew J.; Werner, Philipp is a scholarly article available to read on EtoBox.

What is Exploring nonequilibrium phases of photo-doped Mott insulators with Generalized Gibbs ensembles about?

Photo-excited strongly correlated systems can exhibit intriguing non-thermal phases, but the theoretical investigation of them poses significant challenges. In this work, we introduce a generalized Gibbs ensemble type description for long-lived photo-doped states in Mott insulators. This framework enables systematic studies of photo-induced phases based on equilibrium methods, as demonstrated here for the one-dimensional extended Hubbard model. We determine the nonequilibrium phase diagram, which features $\eta$-pairing and charge density wave phases in a wide doping range, and reveal physical properties of these phases. We show that the peculiar kinematics of photo-doped carriers, and the interaction between them, play an essential role in the formation of the non-thermal phases, and we clarify the differences between photo-doped Mott insulators, chemically-doped Mott insulators and photo-doped semiconductors. Our results demonstrate a new path for the systematic exploration of nonequilibrium strongly correlated systems and show that photo-doped Mott insulators host different phases than conventional semiconductors.

Author

Murakami, Yuta; Takayoshi, Shintaro; Kaneko, Tatsuya; Sun, Zhiyuan; Golež, Denis; Millis, Andrew J.; Werner, Philipp

Published

2021

Language

EN