Analysis of time-resolved single-particle spectrum on the one-dimensional extended Hubbard model

Can Shao, Takami Tohyama, Hong Gang Luo, Hantao Lu

Research output: Contribution to journalArticle

Abstract

We investigate the short-time evolution of the half filled one-dimensional extended Hubbard model in the strong-coupling regime, driven by a transient laser pump. Combining twisted boundary conditions with the time-dependent Lanczos technique, we obtain snapshots of the single-particle spectral function with high momentum resolution. The analysis of the oscillations of the spectral function shows that its characteristic frequencies are consistent with the magnitudes of the optical gap. Furthermore, we examine the time-evolving spectral structure in the charge-density-wave phase in detail and find that one of the bands in the single-particle spectrum originates from the photoinduced bond-order background.

Original languageEnglish
Article number045128
JournalPhysical Review B
Volume101
Issue number4
DOIs
Publication statusPublished - 27 Jan 2020

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