Non-adiabatic electron charge pumping in coupled semiconductor quantum dots

Abstract

The possibility of non-adiabatic electron pumping in the system of three coupled quantum dots attached to the leads is discussed. We have found out that periodical changing of energy level position in the middle quantum dot results in non zero mean tunneling current appeared due to non-adiabatic non-equilibrium processes. The same principle can be used for fabrication of a new class of semiconductor electronic devices based on non-stationary non-equilibrium currents. As an example we propose a nanometer quantum emitter with non-stationary inverse level occupation achieved by electron pumping.

6 pages, 4 figures

References in corpus (3)

• Single-parameter non-adiabatic quantized charge pumping
• Adiabatic pumping through interacting quantum dots
• Non-adiabadic charge pumping in a hybrid SET transistor

Cited by in corpus (5)

• Charge and spin configurations in the coupled quantum dots with Coulomb correlations induced by tunneling current
• Quenched dynamics of entangled states in correlated quantum dots
• Non-stationary effects in the system of coupled quantum dots influenced by the Coulomb correlations
• Diagnostics of many-particle electronic states from non-stationary currents and residual charge
• Non-stationary effects in the coupled quantum dots influenced by the electron-phonon interaction