arXiv Analytics

Sign in

arXiv:1908.04776 [cond-mat.str-el]AbstractReferencesReviewsResources

Dynamical Charge Susceptibility in the Hubbard Model

Xinyang Dong, Xi Chen, Emanuel Gull

Published 2019-08-13Version 1

We compute the dynamical charge susceptibility in the two-dimensional Hubbard model within the dynamical cluster approximation. In order to understand the connection between charge susceptibility and pseudogap, we investigate the momentum, doping, and temperature dependence. We find that as a function of frequency, the dynamical charge susceptibility is well represented by a single peak at a characteristic frequency. It shows little momentum or temperature dependence, while the doping dependence is more evident, and no clear signature of the pseudogap is observed. Data for the doping evolution of the static susceptibility and for fluctuation diagnostics are presented. Our susceptibilities should be directly measurable in future M-EELS experiments.

Related articles: Most relevant | Search more
arXiv:cond-mat/0312083 (Published 2003-12-03)
Temperature dependence and control of the Mott transition in VO_2 based devices
arXiv:cond-mat/9901127 (Published 1999-01-14, updated 1999-05-04)
Anisotropy and temperature dependence of the optical conductivity in LaMnO_3
arXiv:cond-mat/0203518 (Published 2002-03-25)
Temperature Dependence of Hall Response in Doped Antiferromagnets