Zobrazeno 1 - 10 of 14 pro vyhledávání: '"B S Palmer"'
1
Akademický článek
Observation of Autler–Townes effect in a dispersively dressed Jaynes–Cummings system
Autor: B Suri, Z K Keane, R Ruskov, Lev S Bishop, C Tahan, S Novikov, J E Robinson, F C Wellstood, B S Palmer
Publikováno v: New Journal of Physics, Vol 15, Iss 12, p 125007 (2013)
We report on the spectrum of a superconducting transmon device coupled to a planar superconducting resonator in the strong dispersive limit where discrete peaks, each corresponding to a different number of photons, are resolved. A thermal population
Externí odkaz: https://doaj.org/article/101866db61ff4c929defb24a8de9411c
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3
Akademický článek
Microwave photon Fock state generation by stimulated Raman adiabatic passage
Autor: Shavindra P. Premaratne, F. C. Wellstood, B. S. Palmer
Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-6 (2017)
Precise quantum state preparation plays an important role in quantum information processing. Here, Premaratneet al. use stimulated Raman adiabatic passage to transfer population from a superconducting transmon qubit to a cavity Fock state.
Externí odkaz: https://doaj.org/article/6cd2790354924c6b992223036a417755
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4
Characterization of Asymmetric Gap-Engineered Josephson Junctions and 3D Transmon Qubits
Autor: Zach Steffen, S. K. Dutta, Haozhi Wang, Kungang Li, Yizhou Huang, Yi-Hsiang Huang, Advait Mathur, F. C. Wellstood, B. S. Palmer
We have fabricated and characterized asymmetric gap-engineered junctions and transmon devices. To create Josephson junctions with asymmetric gaps, Ti was used to proximitize and lower the superconducting gap of the Al counter-electrode. DC IV measure
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1a67a75fbb72869dd3bc538e27ece73
http://arxiv.org/abs/2302.12280
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5
Long-lived transmons with different electrode layouts
Autor: Kungang Li, S. K. Dutta, Zachary Steffen, Dylan Poppert, Shahriar Keshvari, Jeffery Bowser, B. S. Palmer, C. J. Lobb, F. C. Wellstood
To test the contribution of non-equilibrium quasiparticles to qubit relaxation, we have repeatedly measured the relaxation time T_1 in Al/AlOx/Al transmons with electrodes that have different superconducting gaps. In one device, the first layer elect
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d14aed671185966fc6a0471964f59ad
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6
Closed cycle 4 K nanowatt meter for hectogram payloads
Autor: G. S. Jenkins, K. E. Grutter, P. Petruzzi, B. S. Palmer
Publikováno v: AIP Advances. 12:065105
Superconducting computing research is motivated by fast energy-efficient computing, which creates the challenge of developing components with low-power dissipation requirements. In support of this research, we demonstrate a system that measures heat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::86961bb84c7affc7edfb8bcd42e32fbf
https://doi.org/10.1063/5.0089788
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7
Akademický článek
Thin-film superconducting resonator tunable to the ground-state hyperfine splitting of 87Rb
Autor: Z. Kim, C. P. Vlahacos, J. E. Hoffman, J. A. Grover, K. D. Voigt, B. K. Cooper, C. J. Ballard, B. S. Palmer, M. Hafezi, J. M. Taylor, J. R. Anderson, A. J. Dragt, C. J. Lobb, L. A. Orozco, S. L. Rolston, F. C. Wellstood
Publikováno v: AIP Advances, Vol 1, Iss 4, Pp 042107-042107-6 (2011)
We describe a thin-film superconducting Nb microwave resonator, tunable to within 0.3 ppm of the hyperfine splitting of 87Rb at fRb = 6.834683 GHz. We coarsely tuned the resonator using electron-beam lithography, decreasing the resonance frequency fr
Externí odkaz: https://doaj.org/article/ecbb131db6e046afb047d4512c651255
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