Quantum fluctuation effects in a single electron box
Quantum fluctuation effects in a single electron box are analyzed by considering the gate voltage fluctuations with the use of the quantum Langevin model. At T=0, we derive an analytic expression for the junction charge as a function of the gate voltage and its fluctuations. It is shown that, at T=0, the sawtooth shape of the junction charge, as predicted by existing theories, is rounded off by the quantum fluctuation effects. At finite temperature, the theory is compared with experiments, and a good fit is obtained at all the relevant temperatures. © 1994.
Publication Source (Journal or Book title)
Physica B: Physics of Condensed Matter
Hu, G., O'Connell, R., & Ryu, J. (1994). Quantum fluctuation effects in a single electron box. Physica B: Physics of Condensed Matter, 194-196 (PART 1), 1021-1022. https://doi.org/10.1016/0921-4526(94)90840-0