Thermal Excitation of Multi-Photon Dressed States in Circuit Quantum Electrodynamics

The exceptionally strong coupling realizable between superconducting qubits and photons stored in an on-chip microwave resonator allows for the detailed study of matter-light interactions in the realm of circuit quantum electrodynamics (QED). Here we investigate the resonant interaction between a si...

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Bibliographic Details
Published inarXiv.org
Main Authors Fink, J M, Baur, M, Bianchetti, R, Filipp, S, Göppl, M, Leek, P J, Steffen, L, Blais, A, Wallraff, A
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 19.11.2009
Subjects
Photons
Physics - Mesoscale and Nanoscale Physics
Physics - Quantum Physics
Physics - Superconductivity
Quantum dots
Quantum electrodynamics
Quantum theory
Qubits (quantum computing)
Resonant interactions
Superconductivity
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Summary:The exceptionally strong coupling realizable between superconducting qubits and photons stored in an on-chip microwave resonator allows for the detailed study of matter-light interactions in the realm of circuit quantum electrodynamics (QED). Here we investigate the resonant interaction between a single transmon-type multilevel artificial atom and weak thermal and coherent fields. We explore up to three photon dressed states of the coupled system in a linear response heterodyne transmission measurement. The results are in good quantitative agreement with a generalized Jaynes-Cummings model. Our data indicates that the role of thermal fields in resonant cavity QED can be studied in detail using superconducting circuits.
ISSN:2331-8422
DOI:10.48550/arxiv.0911.3797