X-ray edge singularity in integrable lattice models of correlated electrons

Article

关键词: LUTTINGER-LIQUID;    ONE DIMENSION;    CONDUCTIVITY;    SYSTEMS;    CHAINS;    ENERGY;   

DOI  :  10.1103/PhysRevB.56.6631

来源: SCIE

【 摘 要 】

We study the singularities in x-ray absorption spectra of one-dimensional Hubbard and t-J models. We use boundary conformal field theory and the Bethe ansatz solutions of these models with both periodic and open boundary conditions to calculate the exponents describing the power-law decay near the edges of x-ray absorption spectra in the case where the core-hole potential has bound states.

【 授权许可】

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