Coherent temporal oscillations of macroscopic quantum states in a Josephson junction

Yang Yu, Siyuan Han, Xi Chu, Shih I. Chu, Zhen Wang

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)889-892
Number of pages4
JournalScience
Volume296
Issue number5569
DOIs
StatePublished - May 3 2002

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