Dynamical offset charges in single-electron transistors - art. no. 186805

To explain our observations of anomalous, transport through a single-electr on transistor we propose a model where a charged two-level system is couple d to the device. The state of the two-level system depends self-consistentl y on the state of the transistor, leading to stable gate-voltage-controlled configurations of the offset charge at low bias, and dynamical switching b ehavior at high bias. This phenomenon may impact applications of single ele ctronics, as, well as fundamental measurements in quantum dots.