Publications

List of Publications

  • Converting separable conditions to entanglement-breaking conditions
    Ryo Namiki, Phys. Rev. A 94, 042331 (2016).
  • Role of syndrome information on a one-way quantum repeater using teleportation-based error correction
    Ryo Namiki, Liang Jiang, Jungsang Kim, and Norbert Lütkenhaus, Phys. Rev. A 94, 052304 (2016).
  • Multi-partite squash operation and its application to device-independent quantum key distribution
    Toyohiro Tsurumaru and Tsubasa Ichikawa, New Journal of Physics 18, 103043 (2016).
  • Non-equilibrium dynamics induced by miscible-immiscible transition in binary Bose-Einstein condensates
    Yujiro Eto, Masahiro Takahashi, Masaya Kunimi, Hiroki Saito, and Takuya Hirano New Journal of Physics 17, 073029 (2016).
  • Bouncing motion and penetration dynamics in multicomponent Bose-Einstein condensates
    Yujiro Eto, Masahiro Takahashi, Keita Nabeta, Ryotaro Okada, Masaya Kunimi, Hiroki Saito, and Takuya Hirano Physical Review A 93, 033615 (2016) .
  • Experimental realization of a spatially separated entanglement with continuous variable using laser pulse trains
    Yun Zhang, Ryuhi Okubo, Mayumi Hirano, Yujiro Eto, and Takuya Hirano Scientific Reports5, 13029/1-8(2015).
  • Suppression of relative flow by multiple domains in two component Bose-Einstein condensates
    Yujiro Eto, Masaya Kunimi,Hidekatsu Tokita,Hiroki Saito, and Takuya Hirano Physical Review A 92, 013611/1-5(2015).
    
  • Construction of Arbitrary Robust One-Qubit Operations using Planar Geometry
    Tsubasa Ichikawa, Jefferson G. Filgueiras, Masamitsu Bando, Yasushi Kondo, Mikio Nakahara and Dieter Suter Phys. Rev. A 90,052330/1-6 (2014).
  • Control of spin current in a Bose gas by bang-bang pulses
    Yujiro Eto, Mark Sadgrove, Sho Hasegawa, Hiroki Saito, and Takuya Hirano arXiv:1405.0347
  • Observation of dipole-induced spin texture in an 87Rb spin-2 Bose-Einstein condensate
    Yujiro Eto, Hiroki Saito, and Takuya Hirano Phys. Rev. Lett. 112, 1835301 (2014).
  • Ultrabroadband direct detection of nonclassical photon statistics at telecom wavelength
    Kentaro Wakui, Yujiro Eto, Hugo Benichi, Tetsufumi Yanagida, Shuro Izumi, Kazuhiro Ema, Takayuki Numata, Daiji Fukuda, Masahiro Takeoka, and Masahide Sasaki Scientific Reports 4, 4535 (2014)
    
  • Spin-echo-based magnetometry with spinor Bose-Einstein condensates
    Yujiro Eto, Hayato Ikeda, Hirosuke Suzuki, Sho Hasegawa, Yasushi Tomiyama, Sawako Sekine, Mark Sadgrove, and Takuya Hirano Phys. Rev. A 88, 031602(R) (2013).
  • Ramsey Interferometry Using the Zeeman Sublevels in a Spin-2 Bose Gas
    Mark Sadgrove, Yujiro Eto, Sawako Sekine, Hirosuke Suzuki, and Takuya Hirano Journal of the Physical Society of Japan 82, 094002 (2013).
  • Quantum tele-amplification with a continuous-variable superposition state
    Jonas S. Neergaard-Nielsen, Yujiro Eto, Chang-Woo Lee, Hyunseok Jeong, and Masahide Sasaki Nature Photonics 7, 439-443 (2013).
  • Control and Detection of the Larmor Precession of F=2 87Rb Bose–Einstein Condensates by Ramsey Interferometry and Spin-Echo
    Yujiro Eto, Sawako Sekine, Sho Hasegawa, Mark Sadgrove, Hiroki Saito, and Takuya Hirano Applied Physics Express 6, 052801 (2013).
    
  • Efficient homodyne measurement of picosecond squeezed pulses with pulse shaping technique
    Yujiro Eto, Akane Koshio, Akito Ohshiro, Junichi Sakurai, Keiko Horie, Takuya Hirano, and Masahide Sasaki Optics Letters 36, 4653-4655 (2011).
  • Projective Measurement of a Single Nuclear Spin Qubit by Using Two-Mode Cavity QED
    Yujiro Eto, Atsushi Noguchi, Peng Zhang, Masahito Ueda, and Mikio Kozuma, Physical Review Letters 106, 160501 (2011).
  • Transporting continuous quantum variables of individual light pulses
    Yujiro Eto, Yun Zhang, and Takuya Hirano, Optics Express 19, 1360-1366 (2011).
  • Controlling phase separation of binary Bose-Einstein condensates via mixed-spin-channel Feshbach resonance
    Satoshi Tojo, Yoshihisa Taguchi, Yuta Masuyama, Taro Hayashi, Hiroki Saito, and Takuya Hirano, Physical Review A 82, 033609 (2010).
  • Dynamics of Quadruply Quantized Vortices in 87Rb Bose–Einstein Condensates Confined in Magnetic and Optical Traps
    Takeshi Kuwamoto, Hayato Usuda, Satoshi Tojo, and Takuya Hirano, Journal of the Physical Society of Japan 79, 034004 (2010).
  • Spin-dependent inelastic collisions in spin-2 Bose-Einstein condensates
    Satoshi Tojo, Taro Hayashi, Tatsuyoshi Tanabe, Takuya Hirano, Yuki Kawaguchi, Hiroki Saito, and Masahito Ueda, Physical Review A 80, 042704 (2009).
    (selected by Virtual Journal of Atomic Quantum Fluids, vol 1, Issue 5.)
  • Stable generation of quadrature entanglement using a ring interferometer
    Yujiro Eto, Akihiro Nonaka, Yun Zhang, and Takuya Hirano, Physical Review A 79, 050302(R) (2009).
  • Experimental generation of broadband quadrature entanglement using laser pulses
    Yun Zhang, Tatsuya Furuta, Ryuhi Okubo, Kosuke Takahashi, and Takuya Hirano, Physical Review A 76, 012314 (2007).
  • Observation of squeezed light at 1.535μm using a pulsed homodyne detector
    Yujiro Eto, Takashi Tajima, Yun Zhang, and Takuya Hirano, Optics Letters 32, 1698-1700 (2007).
  • Determination of the s-Wave Scattering Length and the C6 van der Waals Coefficient of 174Yb via Photoassociation Spectroscopy
    K. Enomoto, M. Kitagawa, K. Kasa, S. Tojo, and Y. Takahashi, Physical Review Letters 98, 203201 (2007).
  • Security of continuous-variable quantum cryptography using coherent states: Decline of postselection advantage
    Ryo Namiki and Takuya Hirano, Physical Review A 72, 024301 (2005).
  • 3 dB squeezing by single-pass parametric amplification in a periodically poled KTiOPO4 crystal
    T. Hirano, K. Kotani, T. Ishibashi, S. Okude, T. Kuwamoto, Optics Letters 30, 1722-1724, (2005).

Contact

  • TEL: +81-3-3986-0221
    (ex. 6466,6480)
  • FAX: +81-3-5992-1029
    (Faculty Office)
  • Dept. of Physics
    Gakushuin Univ.y
    1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan
Quantum Optics Group (Hirano Lab.), Department of Physics, Gakushuin University.