Finite frequency noise in a chiral Luttinger liquid coupled to phonons

Article

关键词: ELECTRON QUANTUM OPTICS;    THERMAL TRANSPORT;    EDGE EXCITATIONS;    PHASE-DIAGRAM;   

DOI  :  10.1103/PhysRevB.100.155422

来源: SCIE

【 摘 要 】

We study transport between quantum Hall edge states at filling factor nu = 1 in the presence of electronacoustic-phonon coupling. After a Bogoliubov-Valatin transformation, the low-energy spectrum of interacting electron-phonon system is presented. The electron-phonon interaction splits the spectrum into charged and neutral downstream and neutral upstream modes with different velocities. In the regimes of dc and periodic ac biases the tunneling current and nonequilibrium finite frequency nonsymmetrized noise are calculated perturbatively in tunneling coupling of the quantum point contact. We show that the presence of electron-phonon interaction strongly modifies noise and current relations compared to the free-fermion case.

【 授权许可】

Free