Quantum state control, entanglement, and readout of the Josephson persistent-current qubit
Authors: 
K. Semba, J. Johansson, K. Kakuyanagi, H. Nakano, S. Saito, H. Tanaka, H. TakayanagiAuthors Info & Claims
K. Semba, J. Johansson, K. Kakuyanagi, H. Nakano, S. Saito, H. Tanaka, H. TakayanagiAuthors Info & ClaimsPages 199 - 215
Abstract
Quantum state control including entanglement, and readout of the Josephson persistent-current qubit, flux qubit, are reviewed. First, we mention our single-shot readout of quantum superposition state of a flux qubit by a current biased dc-SQUID. Second, we mention entangled state and vacuum Rabi oscillations of a flux-qubit LC-resonator system where qubit-resonator coupled state are controlled by a combination of microwave and DC-shift pulses, resulting in a controlling and measuring sequence analogous to atomic cavity QED. Third, we report our recent progress in high fidelity readout of a flux qubit state via Josephson bifurcation amplifier (JBA).
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- Quantum state control, entanglement, and readout of the Josephson persistent-current qubit
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Published: 01 June 2009
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