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Simultaneous bistability of qubit and resonator in circuit quantum electrodynamics

Abstract:

We explore the joint activated dynamics exhibited by two quantum degrees of freedom: a cavity mode oscillator which is strongly coupled to a superconducting qubit in the strongly coherently driven dispersive regime. Dynamical simulations and complementary measurements show a range of parameters where both the cavity and the qubit exhibit sudden simultaneous switching between two metastable states. This manifests in ensemble averaged amplitudes of both the cavity and qubit exhibiting a partial...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1103/PhysRevLett.118.040402

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Department:
Oxford, MPLS, Physics, Condensed Matter Physics
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Author
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Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
Author
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Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
Author
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Publisher:
American Physical Society Publisher's website
Journal:
Physical Review Letters Journal website
Volume:
118
Pages:
040402
Publication date:
2017-01-05
Acceptance date:
2016-12-13
DOI:
ISSN:
1079-7114
Pubs id:
pubs:666083
URN:
uri:c5cf15e0-19bf-4e67-8087-f7984b564c6c
UUID:
uuid:c5cf15e0-19bf-4e67-8087-f7984b564c6c
Local pid:
pubs:666083

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