title: Coherent temporal oscillations of macroscopic quantum states in a Josephson junction.
abstract: We report the generation and observation of coherent temporal oscillations between the macroscopic quantum states of a Josephson tunnel junction by applying microwaves with frequencies close to the level separation. Coherent temporal oscillations of excited state populations were observed by monitoring the junction's tunneling probability as a function of time. From the data, the lower limit of phase decoherence time was estimated to be about 5 microseconds.
authors: Department of Physics and Astronomy, University of Kansas, Lawrence, KS 66045, USA.
authors: Yang
authors: Y
authors: Yu
authors: Siyuan
authors: S
authors: Han
authors: Xi
authors: X
authors: Chu
authors: Shih-I
authors: SI
authors: Chu
authors: Zhen
authors: Z
authors: Wang