FERMI-EDGE SINGULARITY WITH BACKSCATTERING IN THE LUTTINGER-LIQUID MODEL

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关键词: GAS;   

DOI  :  10.1103/PhysRevB.49.2148

来源: SCIE

【 摘 要 】

We study the response of the interacting electron gas in one-dimension (1D) to a local external potential. In the low-frequency limit the power-law singularities are essentially modified by backscattering effects which, in the case of zero forward scattering, result in the universal critical exponent depending only on the Luttinger-liquid interactions. The results obtained may be used to describe singular responses of the 1D boson chains.

【 授权许可】

Free