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Nonlinear microwave...
Nonlinear microwave photon occupancy of a driven resonator strongly coupled to a transmon qubit
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- Suri, Baladitya, 1984 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,University of Maryland
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- Keane, Z.K. (författare)
- Northrop Grumman corporation
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- Bishop, Lev S. (författare)
- IBM Thomas J. Watson Research Center
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- Novikov, S. (författare)
- University of Maryland
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- Wellstood, F.C. (författare)
- University of Maryland
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- Palmer, B.S. (författare)
- University of Maryland
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(creator_code:org_t)
- 2015
- 2015
- Engelska.
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Ingår i: Physical Review A - Atomic, Molecular, and Optical Physics. - 2469-9926 .- 2469-9934. ; 92:6
- Relaterad länk:
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http://dx.doi.org/10...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- We measure photon occupancy in a thin-film superconducting lumped element resonator coupled to a transmon qubit at 20mK and find a nonlinear dependence on the applied microwave power. The transmon-resonator system was operated in the strong dispersive regime, where the ac Stark shift (2χ) due to a single microwave photon present in the resonator was larger than the linewidth (Γ) of the qubit transition. When the resonator was coherently driven at 5.474 325 GHz, the transition spectrum of the transmon at 4.982 GHz revealed well-resolved peaks, each corresponding to an individual photon number-state of the resonator. From the relative peak heights we obtain the occupancy of the photon states and the average photon occupancy n¯ of the resonator. We observe a nonlinear variation of n¯ with the applied drive power Prf for n¯
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies (hsv//eng)
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- ref (ämneskategori)
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