Press Release

Publications in 2017

  1. Y. Hatakeyama, A. Mizutani, G. Kato, N. Imoto, and K. Tamaki

    Differential-phase-shift quantum-key-distribution protocol with a small number of random delays

    Phys. Rev. A 95 (4), 042301 (2017).

  2. T. Tawara, G. Mariani, K. Shimizu, H. Omi, S. Adachi, and H. Gotoh

    Effect of isotopic purification on spectral-hole narrowing in Er-167(3+) hyperfine transitions

    Appl. Phys. Express 10 (4), 042801 (2017).

  3. N. Lo Piparo, M. Razavi, and W. J. Munro

    Measurement-device-independent quantum key distribution with nitrogen vacancy centers in diamond

    Phys. Rev. A 95 (2), 022338 (2017).

  4. S. Putz, A. Angerer, D. O. Krimer, R. Glattauer, W. J. Munro, S. Rotter, J. Schmiedmayer, and J. Majer

    Spectral hole burning and its application in microwave photonics

    Nat. Photonics 11 (1) 36-39 (2017).

Publications in 2016

  1. K. Azuma, A. Mizutani and H. K. Lo

    Fundamental rate-loss trade-off for the quantum internet

    Nat. Commun. 7 13523 (2016).

  2. M. Y. Niu, F. H. Xu, J. H. Shapiro and F. Furrer

    Finite-key analysis for time-energy high-dimensional quantum key distribution

    Phys. Rev. A 94 (5), 052323 (2016).

  3. S. Dooley, W. J. Munro and K. Nemoto

    Quantum metrology including state preparation and readout times

    Phys. Rev. A 94 (5), 052320 (2016).

  4. S. N. A. Duffus, K. N. Bjergstrom, V. M. Dwyer, J. H. Samson, T. P. Spiller, A. M. Zagoskin, W. J. Munro, K. Nemoto and M. J. Everitt

    Some implications of superconducting quantum interference to the application of master equations in engineering quantum technologies

    Phys. Rev. B 94 (6), 064518 (2016).

  5. G. Kato and K. Tamaki

    Security of six-state quantum key distribution protocol with threshold detectors

    Sci Rep. 6 30044 (2016).

  6. N. Lambert, K. Debnath, A. F. Kockum, G. C. Knee, W. J. Munro and F. Nori

    Leggett-Garg inequality violations with a large ensemble of qubits

    Phys. Rev. A 94 (1), 012105 (2016).

  7. K. Tamaki, M. Curty and M. Lucamarini

    Decoy-state quantum key distribution with a leaky source

    New J. Phys. 18 065008 (2016).

  8. K. Nemoto, M. Trupke, S. J. Devitt, B. Scharfenberger, K. Buczak, J. Schmiedmayer and W. J. Munro

    Photonic Quantum Networks formed from NV-centers

    Sci Rep. 6 26284 (2016).

  9. P. A. Knott, W. J. Munro and J. A. Dunningham

    Correspondence: Enhancing a phase measurement by sequentially probing a solid-state system

    Nat. Commun. 7 11520 (2016).

  10. Y. Nagamatsu, A. Mizutani, R. Ikuta, T. Yamamoto, N. Imoto and K. Tamaki

    Security of quantum key distribution with light sources that are not independently and identically distributed

    Phys. Rev. A 93 (4), 042325 (2016).

  11. 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).

  12. R. J. Collins, R. Amiri, M. Fujiwara, T. Honjo, K. Shimizu, K. Tamaki, M. Takeoka, E. Andersson, G. S. Buller and M. Sasaki

    Experimental transmission of quantum digital signatures over 90 km of installed optical fiber using a differential phase shift quantum key distribution system

    Opt. Lett. 41 (21), 4883-4886 (2016).

  13. 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)..

  14. T. Tilma, M. J. Everitt, J. H. Samson, W. J. Munro, and K. Nemoto

    Wigner Functions for Arbitrary Quantum Systems

    Phys. Rev. Lett. 117 (18), 180401 (2016).

  15. Kosuke Kakuyanagi, Yuichiro Matsuzaki, Corentin Deprez, Hiraku Toida, Kouichi Semba, Hiroshi Yamaguchi, William J. Munro and Shiro Saito

    Observation of collective coupling between an engineered ensemble of macroscopic artificial atoms and a superconducting resonator

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

  16. 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

    Journal of Physics: Condensed Matter 28, 275302 (2016).

  17. Shane Dooley, Emi Yukawa, Yuichiro Matsuzaki, George C. Knee, William J. Munro and Kae Nemoto

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

    New Journal of Physics 18, 053011 (2016).

  18. Kohtaro Kato, Fabian Furrer, and Mio Murao

    Information-theoretical analysis of topological entanglement entropy and multipartite correlations

    Phys. Rev. A 93, 022317 (2016).

Publications in 2015

  1. A. Mizutani, N. Imoto and K. Tamaki

    Robustness of the round-robin differential-phase-shift quantum-key-distribution protocol against source flaws

    Phys. Rev. A 92, 060303 (2015).

  2. K. Azuma, K. Tamaki and W. J. Munro

    All-photonic intercity quantum key distribution

    Nat. Commun. 6, 10171 (2015).

  3. B. Scharfenberger, H. Kosaka, W. J. Munro and K. Nemoto

    Absorption-based quantum communication with NV centres

    New J. Phys. 17, 103012 (2015).

  4. A. Mizutani, M. Curty, C. C. W. Lim, N. Imoto and K. Tamaki

    Finite-key security analysis of quantum key distribution with imperfect light sources

    New J. Phys. 17, 093011 (2015).

  5. G. C. Knee and W. J. Munro

    Fisher information versus signal-to-noise ratio for a split detector

    Phys. Rev. A 92, 012130 (2015).

  6. G. C. Knee and W. J. Munro

    Optimal Trotterization in universal quantum simulators under faulty control

    Phys. Rev. A 91, 052327 (2015).

  7. W. J. Munro, K. Azuma, K. Tamaki and K. Nemoto

    Inside Quantum Repeaters

    IEEE J. Sel. Top. Quantum Electron. 21,6400813 (2015).

  8. R. Namiki and K. Azuma

    Quantum Benchmark via an Uncertainty Product of Canonical Variables

    Phys. Rev. Lett. 114, 140503 (2015).

  9. K. Azuma, K. Tamaki and H. K. Lo

    All-photonic quantum repeaters

    Nat. Commun. 6, 6787 (2015).

  10. 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).

  11. 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).

  12. 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).

  13. 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) .

  14. H. Takesue, T. Sasaki, K. Tamaki and M. Koashi

    Experimental quantum key distribution without monitoring signal disturbance

    Nat. Photonics 9, 827-831 (2015).

  15. P. P. Rohde, K. R. Motes, P. A. Knott, J. Fitzsimons, W. J. Munro, and J. P. Dowling

    Evidence for the conjecture that sampling generalized cat states with linear optics is hard

    Phys. Rev. A 91 (1), 012342 (2015).

  16. Tohru Tanaka, Paul Knott, Yuichiro Matsuzaki, Shane Dooley, Hiroshi Yamaguchi, William J. Munro and Shiro Saito

    Robust entanglement-based magnetic field sensor beyond the standard quantum limit

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

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

    Spin Amplification in an Inhomogeneous System

    Journal of the Physical Society of Japan 84, 103001 (2015).

Publications in 2014

  1. M. Curty, F. H. Xu, W. Cui, C. C. W. Lim, K. Tamaki and H. K. Lo

    Finite-key analysis for measurement-device-independent quantum key distribution

    Nat. Commun. 5, 3732 (2014).

  2. M. S. Everitt, S. Devitt, W. J. Munro and K. Nemoto

    High-fidelity gate operations with the coupled nuclear and electron spins of a nitrogen-vacancy center in diamond

    Phys. Rev. A 89 (5), 052317 (2014).

  3. P. A. Knott, W. J. Munro and J. A. Dunningham

    Attaining subclassical metrology in lossy systems with entangled coherent states

    Phys. Rev. A 89 (5), 053812 (2014).

  4. P. A. Knott, T. J. Proctor, K. Nemoto, J. A. Dunningham and W. J. Munro

    Effect of multimode entanglement on lossy optical quantum metrology

    Phys. Rev. A 90 (3), 033846 (2014).

  5. H. K. Lo, M. Curty and K. Tamaki

    Secure quantum key distribution

    Nat. Photonics 8 (8), 595-604 (2014).

  6. A. Mizutani, K. Tamaki, R. Ikuta, T. Yamamoto and N. Imoto

    Measurement-device-independent quantum key distribution for Scarani-Acin-Ribordy-Gisin 04 protocol

    Sci Rep 4, 5236 (2014).

  7. K. Nemoto, M. Trupke, S. J. Devitt, A. M. Stephens, B. Scharfenberger, K. Buczak, T. Nobauer, M. S. Everitt, J. Schmiedmayer and W. J. Munro

    Photonic Architecture for Scalable Quantum Information Processing in Diamond

    Phys. Rev. X 4 (3), 031022 (2014).

  8. B. Scharfenberger, W. J. Munro and K. Nemoto

    Coherent control of an NV- center with one adjacent 13C

    New J. Phys. 16, 093043 (2014).

  9. K. Tamaki, M. Curty, G. Kato, Hoi-Kwong Lo and K. Azuma

    Loss-tolerant quantum cryptography with imperfect sources

    Phys. Rev. A, At. Mol. Opt. Phys. 90 (5), 052314 (2014).

  10. 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).

  11. K. Inaba, Y. Tokunaga, K. Tamaki, K. Igeta and M. Yamashita

    High-Fidelity Cluster State Generation for Ultracold Atoms in an Optical Lattice

    Phys. Rev. Lett. 112 (11), 110501 (2014).

  12. N. Matsuda, P. Karkus, H. Nishi, T. Tsuchizawa, W. J. Munro, H. Takesue and K. Yamada

    On-chip generation and demultiplexing of quantum correlated photons using a silicon-silica monolithic photonic integration platform

    Opt. Express 22 (19), 22831-22840 (2014).

  13. K. Shimizu, T. Honjo, M. Fujiwara, T. Ito, K. Tamaki, S. Miki, T. Yamashita, H. Terai, Z. Wang and M. Sasaki

    Performance of Long-Distance Quantum Key Distribution Over 90-km Optical Links Installed in a Field Environment of Tokyo Metropolitan Area

    J. Lightwave Technol. 32 (1), 141-151 (2014).