Violation of Onsager symmetry for a ballistic channel Coulomb coupled to a quantum ring

Abstract

We investigate a scattering of electron which is injected individually into an empty ballistic channel containing a cavity that is Coulomb coupled to a quantum ring charged with a single-electron. We solve the time-dependent Schrödinger equation for the electron pair with an exact account for the electron-electron correlation. Absorption of energy and angular momentum by the quantum ring is not an even function of the external magnetic field. As a consequence we find that the electron backscattering probability is asymmetric in the magnetic field and thus violates Onsager symmetry.

submitted to EPL

References in corpus (5)

• Spin rotations induced by electron running on closed trajectories in gated semiconductor nanodevices
• On the validity and breakdown of the Onsager symmetry in mesoscopic conductors interacting with environments
• Signature of the electron-electron interaction in the magnetic field dependence of nonlinear I-V characteristics in mesoscopic conductors
• Magnetic-field asymmetry of electron wave packet transmission in bent channels capacitively coupled to a metal gate
• Magnetic-field symmetries of mesoscopic nonlinear conductance

Cited by in corpus (2)

• Magnetoasymmetric transport in a mesoscopic interferometer: From the weak to the strong coupling regime
• Non-Reciprocity of the Wave Packet Scattering Delay in Ballistic Two-Terminal Devices