Coherent temporal oscillations of macroscopic quantum states in a Josephson junction

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

doi:10.1126/science.1069452

Coherent temporal oscillations of macroscopic quantum states in a Josephson junction

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

Chemistry

Research output: Contribution to journal › Article › peer-review

646 Scopus citations

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 language	English
Pages (from-to)	889-892
Number of pages	4
Journal	Science
Volume	296
Issue number	5569
DOIs	https://doi.org/10.1126/science.1069452
State	Published - May 3 2002

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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.",

author = "Yang Yu and Siyuan Han and Xi Chu and Chu, {Shih I.} and Zhen Wang",

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AU - Yu, Yang

AU - Han, Siyuan

AU - Chu, Xi

AU - Chu, Shih I.

AU - Wang, Zhen

PY - 2002/5/3

Y1 - 2002/5/3

N2 - 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.

AB - 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.

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U2 - 10.1126/science.1069452

DO - 10.1126/science.1069452

M3 - Article

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SN - 0036-8075

VL - 296

SP - 889

EP - 892

JO - Science

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IS - 5569

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Coherent temporal oscillations of macroscopic quantum states in a Josephson junction

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