Static flux bias of a flux qubit using persistent current trapping
نویسندگان
چکیده
منابع مشابه
Low-decoherence flux qubit
J. Q. You,1,2 Xuedong Hu,3 S. Ashhab,2 and Franco Nori2,4 1Department of Physics and Surface Physics Laboratory (National Key Laboratory), Fudan University, Shanghai 200433, China 2Frontier Research System, The Institute of Physical and Chemical Research (RIKEN), Wako-shi 351-0198, Japan 3Department of Physics, University at Buffalo, SUNY, Buffalo, New York 14260-1500, USA 4Center for Theoretic...
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We present a new readout method for a superconducting flux qubit, based on the measurement of the Josephson inductance of a superconducting quantum interference device that is inductively coupled to the qubit. The intrinsic flux detection efficiency and backaction are suitable for a fast and nondestructive determination of the quantum state of the qubit, as needed for readout of multiple qubits...
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We present the design of a superconducting qubit that has circulating currents of opposite sign as its two states. The circuit consists of three nanoscale aluminum Josephson junctions connected in a superconducting loop and controlled by magnetic fields. The advantages of this qubit are that it can be made insensitive to background charges in the substrate, the flux in the two states can be det...
متن کاملJosephson persistent-current qubit
A qubit was designed that can be fabricated with conventional electron beam lithography and is suited for integration into a large quantum computer. The qubit consists of a micrometer-sized loop with three or four Josephson junctions; the two qubit states have persistent currents of opposite direction. Quantum superpositions of these states are obtained by pulsed microwave modulation of the enc...
متن کاملNoise-induced quantum coherence and persistent Rabi oscillations in a Josephson flux qubit
A. N. Omelyanchouk,1 S. Savel’ev,2,3 A. M. Zagoskin,2,3 E. Il’ichev,4 and Franco Nori3,5 1B.Verkin Institute for Low Temperature Physics and Engineering, 61103 Kharkov, Ukraine 2Department of Physics, Loughborough University, Leicestershire LE11 3TU, United Kingdom 3Digital Materials Laboratory, Advanced Science Institute, RIKEN, Wako-shi, Saitama 351-0198, Japan 4Institute of Photonic Technolo...
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ژورنال
عنوان ژورنال: Superconductor Science and Technology
سال: 2006
ISSN: 0953-2048,1361-6668
DOI: 10.1088/0953-2048/19/11/011