Entangling homogeneously broadened matter qubits in the weak-coupling cavity-QED regime
Kazuki Koshino and Yuichiro Matsuzaki
Phys. Rev. A 86, 020305(R) (2012)
Ideal quantum nondemolition measurement of a flux qubit at variable bias
Wang, YD; Zhu, XB; Bruder, C,
Phys. Rev. B 83, 134504 (2011)
Coherent coupling of a superconducting flux qubit to an electron spin ensemble in diamond
Xiaobo Zhu, Shiro Saito, Alexander Kemp, Kosuke Kakuyanagi, Shin-ichi Karimoto, Hayato Nakano, William J. Munro, Yasuhiro Tokura, Mark S. Everitt, Kae Nemoto, Makoto Kasu, Norikazu Mizuochi & Kouichi Semba
Nature 478, 221–224 (13 October 2011) doi:10.1038/nature10462
Superconducting qubit as a quantum transformer routing entanglement between a microscopic quantum memory and a macroscopic resonator
Alexander Kemp, Shiro Saito, William J. Munro, Kae Nemoto, and Kouichi Semba
Phys. Rev. B 84, 104505 (2011)
Quantum Zeno effect with a superconducting qubit
Yuichiro Matsuzaki, Shiro Saito, Kosuke Kakuyanagi, and Kouichi Semba
Phys. Rev. B 82, 180518(R) 2010.
Generation of Non-Classical Microwave Photon States in an Inductor-Capacitor Resonator Coupled to a Superconducting Flux Qubit
Kosuke Kakuyanagi, Seiichiro Kagei, Shiro Saito, Hayato Nakano, and Kouichi Semba
Appl. Phys. Express 3 (2010) 103101
Coherent Operation of a Gap-tunable Flux Qubit
Xiaobo Zhu, Alexander Kemp, Shiro Saito, Kouichi Semba
Appl. Phys. Lett. 97, 102503 (2010)
Readout strength dependence of state projection in superconducting qubit
K. Kakuyanagi, H. Nakano, S. Kagei, R. Koibuchi, S. Saito, A. Lupascu, K. Semba
Experimentally realizable controlled NOT gate in a flux qubit/resonator system
Shiro Saito, Todd Tilma, Simon J. Devitt, Kae Nemoto, and Kouich Semba
Phys. Rev. B 80, 224509 (2009)
Electrical detection and magnetic-field control of spin states in phosphorus-doped silicon
H. Morishita, L. S. Vlasenko, H.Tanaka, K. Semba, K. Sawano, Y. Shiraki,M. Eto, K. M. Itoh
Phys. Rev. B80, 205206 (2009)
Cooling a micro-mechanical resonator by quantum back-action from a noisy qubit
Ying-Dan Wang, Yong Li, Fei Xue, C. Bruder, K. Semba
Phys. Rev. B 80, 144508 (2009)
Quantum Time-evolution in Qubit Readout Process with a Josephson Bifurcation Amplifier
Hayato Nakano, Shiro Saito, Kouichi Semba, Hideaki Takayanagi
Phys. Rev. Lett. 102, 257003(2009)
Quantum state control, entanglement, and readout of the Josephson persistent-current qubit
K. Semba, J. Johansson, K. Kakuyanagi, H. Nakano, S. Saito, H. Tanaka and H. Takayanagi
Quantum Information Processing: Volume 8, Issue 2 (2009), Page 199.
Role of relaxation in the quantum measurement of a superconducting qubit using a nonlinear oscillator
T. Picot, A. Lupascu, S. Saito, C. J. P. M. Harmans and J. E. Mooij
Phys. Rev. B 78, 132508 (2008)
Quantum theory of transmission line resonator-assisted cooling of a micromechanical resonator
Y. Li, Y. D. Wang, F. Xue and C. Bruder
Phys. Rev. B 78, 134301 (2008)
Coupling superconducting flux qubits at optimal point via dynamic decoupling with the quantum bus
Y. D. Wang, A. Kemp, K. Semba
Physical Review B 79, 024502 (2009)
Two-photon probe of the Jaynes–Cummings model and controlled symmetry breaking in circuit QED
Frank Deppe, Matteo Mariantoni, E. P. Menzel, A. Marx, S. Saito, K. Kakuyanagi, H. Tanaka, T. Meno, K. Semba, H. Takayanagi, E. Solano, R. Gross
Nature Physics (29 Jun 2008)
Cooling of a micro-mechanical resonator by the back-action of Lorentz force
Y. D. Wang,K. Semba, H. Yamaguchi.
New Journal of Physics. 10 043015 (2008)
Phase coherent dynamics of a superconducting flux qubit with capacitive bias readout
F. Deppe, M. Mariantoni, E. P. Menzel, S. Saito, K. Kakuyanagi, H. Tanaka, T. Meno, K. Semba, H. Takayanagi, R. Gross
Phys. Rev. B 76, 214503 (2007)
Cooling a micromechanical beam by coupling it to a transmission line
Fei Xue, Y. D. Wang, Yu-xi Liu, and Franco Nori
Phys. Rev. B 76, 205302(2007)
Long range and selective coupler for superconducting flux qubits
H. Nakano, K. Kakuyanagi, M. Ueda, K. Semba
Appl. Phys. Lett. 91, 032501 (2007)
Interface microstructure of MgB2/Al-AlOx/MgB2 Josephson junctions studied by cross-sectional transmission electron microscopy
K. Ueda, S. Saito, K. Semba, T. Makimoto, M. Naito
Jpn. J. Appl. Phys. 46 (2007) L271-L273
Controllable Coupling between Flux Qubit and Nanomechanical Resonator by Magnetic Field
Fei Xue, Y.D Wang, C.P.Sun, H. Okamoto, H. Yamaguchi, K. Semba
New Journal of Physics. 9,35 (2007)
Dephasing of a superconducting flux qubit
K. Kakuyanagi, T. Meno, S. Saito, H. Nakano, K. Semba, H. Takayanagi, F. Deppe, A. Shnirman
Phys. Rev. Lett. 98, 047004 (2007)
Quantum non-demolition measurement of a superconducting two-level system
A. Lupascu, S. Saito, T. Picot, P. C. de Groot, C. J. P. M. Harmans, J. E. Mooij
Nature Physics 3, 119 - 125 (2007)
Vacuum Rabi oscillations in a macroscopic superconducting qubit LC oscillator system
J. Johansson, S. Saito, T. Meno, H. Nakano, M. Ueda, K. Semba, H. Takayanagi
Phys. Rev. Lett. 96, 127006 (2006)
Parametric control of a superconducting flux qubit
S. Saito, T. Meno, M. Ueda, H. Tanaka, K. Semba, H. Takayanagi
Phys. Rev. Lett. 96, 107001 (2006)
Dephasing of a Superconducting Qubit Induced by Photon Noise
P. Bertet, I. Chiorescu, G. Burkard, K. Semba, C. J. P. M. Harmans, D. P. DiVincenzo, J. E. Mooij
Phys. Rev. Lett. 95, 257002 (2005)
Coherent control of a flux qubit by phase-shifted resonant microwave pulses
Tatsuya Kutsuzawa, Shiro Saito, Hirotaka Tanaka, Hayato Nakano, Kouichi Semba, Hideaki Takayanagi
Appl. Phys. Lett. 87, 073501 (2005). DOI: 10.1063/1.2010610
All-MgB2 Josephson tunnel junctions
K. Ueda, S. Saito, K. Semba, T. Makimoto, and M. Naito
Appl. Phys. Lett. 86, 1 (2005). DOI: 10.1063/1.1920411
Detection of a persistent-current qubit by resonant activation
P. Bertet, I. Chiorescu, K. Semba, C. J. P. M. Harmans, and J. E. Mooij
Phys. Rev. B 70, 100501(R) (2004); doi:10.1103/PhysRevB.70.100501
Coherent dynamics of a flux qubit coupled to a harmonic oscillator
I. Chiorescu, P. Bertet, K. Semba, Y. Nakamura, C. J. P. M. Harmans & J. E. Mooij
Nature 431, 159 (2004). (NATURE |VOL 431 | 9 SEPTEMBER 2004) Received 25 May; a
ccepted 5 July 2004; doi:10.1038/nature02831
Multiphoton Transitions in a Macroscopic Quantum Two-State System
S. Saito, M. Thorwart, H. Tanaka, M. Ueda, H. Nakano, K. Semba, and H. Takayanagi
Phys. Rev. Lett. 93, 037001 (2004). [16 July 2004]
Single-Shot Readout of Macroscopic Quantum Superposition State in a Superconducting Flux Qubit
Hirotaka Tanaka, Shiro Saito, Hayato Nakano, Kouichi Semba, Masahito Ueda, Hideaki Takayanagi
A theoretical analysis of flux-qubit measurements with a dc-SQUID
H. Nakano, H. Tanaka, S. Saito, K. Semba, H. Takayanagi, M. Ueda
Determination of the capacitance of nm scale Josephson junctions
F. Deppe, S. Saito, H. Tanaka, and H. Takayanagi
J. Appl. Phys. 95, 2607 (2004)
Readout of the qubit state with a dc-SQUID
H. Takayanagi, H. Tanaka, S. Saito, and H. Nakano
Superlattice and Microstructures 32, 221 (2002)
pi-phase jump of magnetic-field dependence of retrapping current in dc SQUID's
S. Saito, H. Tanaka, H. Nakano, M. Ueda, and H. Takayanagi
Phys. Rev. B 66, 134522 (2002)
DC-SQUID readout for qubit
H. Tanaka, Y. Sekine, S. Saito, and H. Takayanagi
Physica C 368, 300 (2002)
Observation of qubit state with a dc-SQUID and dissipation effect in the SQUID
H. Takayanagi, H. Tanaka, S. Saito, and H. Nakano
Phys. Scr. T102, 95 (2002)
Dc SQUID sensitivity for readout of entangled state quantum bits
H. Tanaka, Y. Sekine, S. Saito, and H. Takayanagi
Supercond. Sci. Technol. 14, 1161 (2001)

Persistent Supercurrent Atom Chip
T. Mukai, C. Hufnagel, A. Kasper, T. Meno, A. Tsukada, K. Semba,and F. Shimizu
Phys. Rev. Lett. 98, 260407 (2007)
Scalable Quantum Computer with Optical Lattices
Fujio Shimizu
Japanese Journal of Applied Physics Vol.43, 8376 (2004)
Efficient rapid production of a Bose-Einstein condensate by overcoming serious three-body loss
Tetsuya Mukai and Makoto Yamashita
Physical Review A, vol. 70, 013615 (2004)