Capacitance of a resonant level coupled to Luttinger liquids

Article

关键词: DIMENSIONAL ELECTRON-GAS;    TRANSMISSION;    CIRCUIT;   

DOI  :  10.1103/PhysRevB.82.161307

来源: SCIE

【 摘 要 】

In this Rapid Communication, we study the differential capacitance of a single-level quantum dot attached to quantum wires in the Luttinger-liquid phase or to fractional quantum-Hall edges, by both tunneling and interactions. We show that logarithmic or even power-law divergence of the capacitance at low temperatures may result in a substantial region of the parameter space (including the v=1/3 filling). This behavior is a manifestation of generalized two-channel Kondo physics and can be used to extract Luttinger-liquid parameters from thermodynamic measurements.

【 授权许可】

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