Quantitative evaluation of defect-models in superconducting phase qubits
نویسندگان
چکیده
منابع مشابه
Superconducting phase qubits
Experimental progress is reviewed for superconducting phase qubit research at the University of California, Santa Barbara. The phase qubit has a potential advantage of scalability, based on the low impedance of the device and the ability to microfabricate complex “quantum integrated circuits”. Single and coupled qubit experiments, including qubits coupled to resonators, are reviewed along with ...
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Prototype Josephson-junction based qubit coherence times are too short for quantum computing. Recent experiments probing superconducting phase qubits have revealed previously unseen fine splittings in the transition energy spectra. These splittings have been attributed to new microscopic degrees of freedom (microresonators), a previously unknown source of decoherence. We show that macroscopic r...
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We analyze conditions for violation of the Bell inequality in the Clauser-Horne-Shimony-Holt form, focusing on Josephson phase qubits. We start the analysis with maximum violation in the ideal case, and then take into account the effects of local measurement errors and decoherence. Special attention is paid to configurations of the qubit measurement directions in the pseudospin space lying with...
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Graduate School of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8521 Frontier Research System, The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198 AdSM, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8530 Center for Theoretical Physics, Physics Department, CSCS, The University of Michigan, Ann Arbor, MI 48109-1040, U.S....
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2010
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.3529457