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Cited by 453

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Mach-Zehnder Interferometry in a Strongly Driven Superconducting Qubit

Open access
Oliver, William D., Yu, Yang, Lee, Janice C., Berggren, Karl K., Levitov, Leonid S., Orlando, Terry P.·2005·Science

Abstract

We demonstrate Mach-Zehnder–type interferometry in a superconducting flux qubit. The qubit is a tunable artificial atom, the ground and excited states of which exhibit an avoided crossing. Strongly driving the qubit with harmonic excitation sweeps it through the avoided crossing two times per period. Because the induced Landau-Zener transitions act as coherent beamsplitters, the accumulated phase between transitions, which varies with microwave amplitude, results in quantum interference fringes for n = 1 to 20 photon transitions. The generalization of optical Mach-Zehnder interferometry, performed in qubit phase space, provides an alternative means to manipulate and characterize the qubit in the strongly driven regime.

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Crossref · 10.1126/science.1119678

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Metadata

Authors
Oliver, W. D., Yu, Y., Lee, J. C., Berggren, K. K., Levitov, L. S., & Orlando, T. P.
Venue
Science
Published
2005-12-09
Volume
310
Issue
5754
Pages
1653-1657
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1971890898
Cited by
453
References
2
FWCI
17.18
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Mach-Zehnder Interferometry in a Strongly Driven Superconducting Qubit. https://app.cochat.ai/papers/10.1126/science.1119678
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Oliver, W. D., Yu, Y., Lee, J. C., Berggren, K. K., Levitov, L. S., & Orlando, T. P. (2005). Mach-Zehnder Interferometry in a Strongly Driven Superconducting Qubit. Science. https://doi.org/10.1126/science.1119678

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