Enhanced charge order in a photoexcited one-dimensional strongly correlated system

Hantao Lu, Shigetoshi Sota, Hiroaki Matsueda, Janez Bonča, Takami Tohyama

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


We present a compelling response of a low-dimensional strongly correlated system to an external perturbation. Using the time-dependent Lanczos method we investigate a nonequilibrium evolution of the half-filled one-dimensional extended Hubbard model, driven by a transient laser pulse. When the system is close to the phase boundary, by tuning the laser frequency and strength, a sustainable charge order enhancement is found that is absent in the Mott insulating phase. We analyze the conditions and investigate possible mechanisms of emerging charge order enhancement. Feasible experimental realizations are proposed.

Original languageEnglish
Article number197401
JournalPhysical Review Letters
Issue number19
Publication statusPublished - 2012 Nov 7


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