Press Release

Publications in 2017

  1. Y. Matsuzaki, S. Nakayama, A. Soeda, S. Saito, and M. Murao

    Projective measurement of energy on an ensemble of qubits with unknown frequencies

    Phys. Rev. A 95 (6), 062106 (2017).

  2. F. Yoshihara, T. Fuse, S. Ashhab, K. Kakuyanagi, S. Saito, and K. Semba

    Characteristic spectra of circuit quantum electrodynamics systems from the ultrastrong- to the deep-strong-coupling regime

    Phys. Rev. A 95 (5), 053824 (2017).

  3. Y. Matsuzaki, and S. Benjamin

    Magnetic-field sensing with quantum error detection under the effect of energy relaxation

    Phys. Rev. A 95 (3), 032303 (2017).

  4. F. Yoshihara, T. Fuse, S. Ashhab, K. Kakuyanagi, S. Saito, and K. Semba

    Superconducting qubit-oscillator circuit beyond the ultrastrong-coupling regime

    Nat. Phys. 13 (1) 44-47 (2017).

Publications in 2016

  1. Y. Matsuzaki, T. Shimo-Oka, H. Tanaka, Y. Tokura, K. Semba and N. Mizuochi

    Hybrid quantum magnetic-field sensor with an electron spin and a nuclear spin in diamond

    Phys. Rev. A 94 (5), 052330 (2016)

  2. K. Kakuyanagi, Y. Matsuzaki, C. Deprez, H. Toida, K. Semba, H. Yamaguchi, W. J. Munro and S. Saito

    Observation of Collective Coupling between an Engineered Ensemble of Macroscopic Artificial Atoms and a Superconducting Resonator

    Phys. Rev. Lett. 117 (21), 210503 (2016)

  3. K. Kakuyanagi, Y. Matsuzaki, T. Baba, H. Nakano, S. Saito and K. Semba

    Characterization and Control of Measurement-Induced Dephasing on Superconducting Flux Qubit with a Josephson Bifurcation Amplifier

    J. Phys. Soc. Jpn. 85 (10), 104801 (2016)

  4. Y. Matsuzaki, H. Morishita, T. Shimooka, T. Tashima, K. Kakuyanagi, K. Semba, W. J. Munro, H. Yamaguchi, N. Mizuochi and S. Saito

    Optically detected magnetic resonance of high-density ensemble of NV- centers in diamond

    J. Phys.-Condes. Matter 28 (27), 275302 (2016)

  5. S. Dooley, E. Yukawa, Y. Matsuzaki, G. C. Knee, W. J. Munro and K. Nemoto

    A hybrid-systems approach to spin squeezing using a highly dissipative ancillary system

    New J. Phys. 18 (2016)

  6. H. Toida, Y. Matsuzaki, K. Kakuyanagi, X. B. Zhu, W. J. Munro, K. Nemoto, H. Yamaguchi and S. Saito

    Electron paramagnetic resonance spectroscopy using a direct current-SQUID magnetometer directly coupled to an electron spin ensemble

    Appl. Phys. Lett. 108 (5), 052601 (2016)

  7. Y. Matsuzaki and H. Tanaka

    Quantum Zeno Effect in an Unstable System with NMR

    J. Phys. Soc. Jpn. 85 (1), 014001 (2016)

  8. Y. Kondo, Y. Matsuzaki, K. Matsushima and J. G. Filgueiras

    Using the quantum Zeno effect for suppression of decoherence

    New J. Phys. 18 013033 (2016)

  9. G. C. Knee, K. Kakuyanagi, M. C. Yeh, Y. Matsuzaki, H. Toida, H. Yamaguchi, S. Saito, A. J. Leggett, and W. J. Munro

    A strict experimental test of macroscopic realism in a superconducting flux qubit

    Nat. Commun. 7, 13253 (2016).

  10. N. Lambert, Y. Matsuzaki, K. Kakuyanagi, N. Ishida, S. Saito, and F. Nori

    Superradiance with an ensemble of superconducting flux qubits

    Phys. Rev. B 94 (22), 224510 (2016)

Publications in 2015

  1. T. Tanaka, P. Knott, Y. Matsuzaki, S. Dooley, H. Yamaguchi, W. J. Munro and S. Saito

    Proposed Robust Entanglement-Based Magnetic Field Sensor Beyond the Standard Quantum Limit

    Phys. Rev. Lett. 115, 170801 (2015)

  2. S. Endo, Y. Matsuzaki, W. J. Munro, T. Koike and S. Saito

    Spin Amplification in an Inhomogeneous System

    J. Phys. Soc. Jpn. 84, 103001 (2015)

  3. J. Govenius, Y. Matsuzaki, I. G. Savenko and M. Mottonen

    Parity measurement of remote qubits using dispersive coupling and photodetection

    Phys. Rev. A 92, 042305 (2015)

  4. H. Cai, Y. Matsuzaki, K. Kakuyanagi, H. Toida, X. Zhu, N. Mizuochi, K. Nemoto, K. Semba, W. J. Munro, S. Saito and H. Yamaguchi

    Analysis of the spectroscopy of a hybrid system composed of a superconducting flux qubit and diamond NV- centers

    J. Phys.-Condes. Matter 27, 345702 (2015)

  5. K. Kakuyanagi, T. Baba, Y. Matsuzaki, H. Nakano, S. Saito and K. Semba

    Observation of quantum Zeno effect in a superconducting flux qubit

    New J. Phys. 17, 063035 (2015)

  6. T. Satoh, Y. Matsuzaki, K. Kakuyanagi, W. J. Munro, K. Semba, H. Yamaguchi and S. Saito

    Scalable quantum computation architecture using always-on Ising interactions via quantum feedforward

    Phys. Rev. A 91, 052329 (2015)

  7. Y. Matsuzaki, X. Zhu, K. Kakuyanagi, H. Toida, T. Shimooka, N. Mizuochi, K. Nemoto, K. Semba, W. J. Munro, H. Yamaguchi and S. Saito

    Improving the lifetime of the nitrogen-vacancy-center ensemble coupled with a superconducting flux qubit by applying magnetic fields

    Phys. Rev. A 91, 042329 (2015)

  8. Y. Matsuzaki, X. Zhu, K. Kakuyanagi, H. Toida, T. Shimo-Oka, N. Mizuochi, K. Nemoto, K. Semba, W. J. Munro, H. Yamaguchi, and S. Saito

    Improving the Coherence Time of a Quantum System via a Coupling to a Short-Lived System

    Phys. Rev. Lett. 114, 120501 (2015)

Publications in 2014

  1. X. B. Zhu, Y. Matsuzaki, R. Amsuss, K. Kakuyanagi, T. Shimo-Oka, N. Mizuochi, K. Nemoto, K. Semba, W. J. Munro and S. Saito

    Observation of dark states in a superconductor diamond quantum hybrid system

    Nat. Commun. 5, 3524 (2014)

Publications in 2013

  1. K. Kakuyanagi, S. Kagei, R. Koibuchi, S. Saito, A. Lupascu, K. Semba, and H. Nakano

    Experimental analysis of the measurement strength dependence of superconducting qubit readout using a Josephson bifurcation readout method

    New J. Phys. 15, 043028 (2013)

  2. S. Saito, XB. Zhu, R. Amsuess, Y. Matsuzaki, K. Kakuyanagi, T. Shimo-Oka, N. Mizuochi, K. Nemoto, WJ. Munro, and K. Semba

    Towards Realizing a Quantum Memory for a Superconducting Qubit: Storage and Retrieval of Quantum States

    Phys. Rev. Lett. 111 (10), 107008 (2013)

  3. A. Shimizu, Y. Matsuzaki, and A. Ukena

    Necessity of Superposition of Macroscopically Distinct States for Quantum Computational Speedup

    J. Phys. Soc. Jpn. 82 (5), 054801 (2013)

Publications in 2012

  1. K. Koshino, and Y. Matsuzaki.

    Entangling homogeneously broadened matter qubits in the weak-coupling cavity-QED regime

    Physical Review A 86 (2), 020305 (2012)

  2. Y. Matsuzaki, and H. Nakano

    Enhanced energy relaxation process of a quantum memory coupled to a superconducting qubit

    Physical Review B 86 (18), 184501 (2012)