QIT10 Program

Oral 20 minutes, Invited 40 minutes, Tutorial 40minutes

Monday 24th, May

9:30-9:40 Opening

<Session 1> 9:40-10:40 Chair: Shiro Kawabata(AIST)

1.        Quantum circuit simulation using the density matrix renormalization group

Akira Kawaguchi (NTT/SORST), Kaoru Shimizu (NTT), Yasuhiro Tokura (NTT/SORST),

Nobuyuki Imoto (SOKEN/SORST/CREST)

2.        Spectral Decomposition Associated with Quantum Simulation

Toshio Fukumi (Matsuyama Univ.)

3.        Quantum Abacus – Local 1D Qubit Realization

Taksu Cheon (Kochi Univ. of Technology)

10:40-11:00 Coffee Break

<Session 2> 11:00-12:00 Chair: Keiji Matsumoto(NII)

4.        Invited Talk: On the Complexity of Quantum Languages

Elham Kashefi (Computing Laboratory, Oxford University)

5.        Communications Topology and Distribution of the Quantum Fourier Transform

Rodney Van Meter (Keio Univ.)

12:00-13:00 Lunch

<Session 3> 13:00-14:20 Chair: Fumitaka Yura(ERATO)

6.        Tutorial Talk: Playing classical games in quantum settings

Sahin Kaya Ozdemir (The Graduate University for Advanced Studies (SOKENDAI))

7.        Quantum Estimation by Local Observables

Masahiro Hotta, Masanao Ozawa (Tohoku Univ.)

8.        Statistical hypothesis testing for entanglement

Yoshiyuki Tsuda, Masahito Hayashi (ERATO), Keiji Matsumoto (ERATO/NII)

14:20-14:40 Coffee Break

<Session 4> 14:40-16:00 Chair: Fumiaki Morikoshi(NTT)

9.        Bound entangled states provide overall convertibility of pure entangled states

Satoshi Ishizaka (PRESTO/NEC)

10.     Comlementraity of Entanglement and Interference

Akio Hosoya, Shouhei Okano, Alberto Carlini (Tokyo Institute of Technology)

11.     Macroscopic entanglement of many-magnon states

Tomoyuki Morimae (Univ. of Tokyo), Ayumu Sugita (Kyoto Univ.),

Akira Shimizu (Univ. of Tokyo)

12.     Bell inequalities derived from combinatorics

Yuuya Sasaki, Tsuyoshi Ito (Univ. of Tokyo), Hiroshi Imai (Univ. of Tokyo/ERATO),

David Avis (McGill Univ.)

<Poster Session > 16:00-18:00

18:00-20:00 Banquet

 

 

Tuesday 25th, May

<Session 5> 9:20-10:40 Chair: Shigeki Takeuchi(Hokkaido Univ.)

13.     Direct Observation of 29Si-Nuclear-Spin Decoherence Process

Susumu Sasaki (Niigata Univ./CREST), Shinji Watanabe (Niigata Univ.)

14.     Experimental demonstration of "plug & play" quantum cryptography with continuous variables

Yohei Kawamoto (Sony Corporation), Takuya Hirano, Namiki Ryo, Masanori Ashikaga,

Atsushi Shimoguchi (Gakushuin Univ.)

15.     Single-photon interference over 150-km transmission using silica-based integrated-optic interferometers for quantum cryptography

Yoshihiro Nambu, Tadamasa Kimura, Takaaki Hatanaka, Kazuo Nakamura (NEC)

16.     Characterization of Non-ideal Two-qubit Quantum Devices by Quantum Process Tomography (2)

Yoshihiro Nambu (NEC)

10:40-11:00 Coffee Break

<Session 6> 11:00-12:00 Chair: Akio Hosoya(TITECH)

17.     Invited Talk: Continuous variable multipartite entanglement and quantum teleportation

Takao Aoki (Univ. of Tokyo)

18.     Quantum Teleportation with a Laser

Mikio Fujii (Toshiba Solutions Corporation)

12:00-13:20 Lunch (Committee Meeting)

<Session 7> 13:20-14:40 Chair: Masahide Sasaki(NiCT)

19.     Tutorial Talk: Capacity of Quantum Gaussian channels

Masaki Sohma (Tamagawa Univ.)

20.     Strong superadditivity of entanglement of formation for stabilizer states

Keiji Masumoto (NII/ERATO), David Fatal (Stanford Univ.),

Yoshihisa Yamamoto (NII/Stanford Univ.), Issac Chuang (MIT)

21.     Qubit Channels Which Require Four Inputs to Achieve Capacity: Implications for Additivity Conjectures

Masahito Hayashi (ERATO), Hiroshi Imai (Univ. of Tokyo/ERATO),

Keiji Matsumoto (ERATO/NII), Mary Beth Ruskai (Tufts Univ.),

Toshiyuki Shimono (Univ. of Tokyo)

14:40-15:00 Coffee Break

 

<Session 8> 15:00-16:40 Chair: Yoshihiro Nambu(NEC)

22.     Unconditionally secure Yuen protocol based on optical communication

Osamu Hirota (Tamagawa Univ.), Kentaro Kato (Chuo Univ.), Masaki Sohma (Tamagawa Univ.), Tsuyoshi Usuda (Aichi Prefecturral University)

23.     Practical limitation for continuous-variable quantum cryptography using coherent states

Ryo Namiki, Takuya Hirano (Gakushuin Univ.)

24.     Unconditional Security of the Bennett 1992 quantum key-distribution protocol over a lossy and noisy channel

Kiyoshi Tamaki (Perimeter Institute for Theoretical Physics),

Masato Koashi (SOKEN/CREST/SORST),

Norbert Lutkenhaus (University Erlangen-Nuremberg),

Nobuyuki Imoto (SOKEN/CREST/SORST/NTT)

25.     Exponential Upper Bound on Information Leakage in Quantum Key Distribution Allowing Joint Attacks

Mitsuru Hamada (ERATO)

26.     Invariant properties of a Clifford code by direct sum

Hagiwara Manabu, Hideki Imai (Univ. of Tokyo)

16:40-16:50 Closing

 

 

Poster Session　　Monday, 24th May　16:00-18:00

P1. Simulation of Grover's algorithm in ion-trap system

Shingo Fujiwara, Shuichi Hasegawa (Univ. of Tokyo)

P2. Generating Quantum Circuits using Cartan Decomposition

Yumi Murakami, Yasuhito Kawano, Hiroshi Sekigawa (NTT)

P3. Photon number resolving detector at telecommunication wavelengths

Mikio Fujiwara, Masahide Sasaki (NICT)

P4. Generation of polarization entangled photon pairs using spontaneous four-wave mixing in fiber loop

Hiroki Takesue, Kyo Inoue (NTT)

P5. Quantum computation with neutral atoms

Tetsuya Mukai, Taro Eichler, Alexander Kasper (NTT/CREST), Munekazu Horikoshi,

Fujio Shimizu (NTT/UEC/CREST)

P6. Spin Squeezing via Spin Quantum Non-Demolition Measurement

Tetsushi Takano, Sunao Ichihara, Makoto Takeuchi (Kyoto Univ.),

 Mitsutaka Kumakura, Yoshiro Takahashi (Kyoto Univ./CREST)

P7. Construction of Quantum Operations and Estimation of the Error in the Kane's Model

Yukihiro Ota, Shuji Mikami, Ichiro Ohba (Waseda Univ.)

P8. Macroscopic Quantum Phenomena in High Tc Cuprate Superconductor Josephson Junctions

Shiro Kawabata (AIST/NEDO), Satoshi Kashiwaya (AIST), Yasuhiro Asano(Hokkaido Univ.),

Yukio Tanaka (Nagoya Univ.)

P9. Original classical games cannot be reproduced in their quantum version with W state

Junichi Shimamura (Osaka Univ./SORST), Sahin Kaya Ozdemir (SORST/CREST/SOKEN),

Fumiaki Morikoshi (NTT), Nobuyuki Imoto (SORST/CREST/SOKEN/NTT)

P10. Single-photon generation using a microcavity

Hideki Higashi (UEC)

P11. A note on universal quantum Turing machine

Satoshi Iriyama, Masanori Ohya (Tokyo University of Science)

P12. Implementation of quantum state discriminator with linear optics and continuous measurement

Masahiro Takeoka , Masahide Sasaki (NICT/CREST),

Peter van Loock (NII/ Univ. of Erlangen-Nuremberg) ,

Norbert Luetkenhaus (Univ. of Erlangen-Nuremberg)

P13. Purification through Zeno-like measurements: Robustness against fluctuations in measurement intervals

Makoto Unoki, Kazuya Yuasa, Hiromichi Nakazato (Waseda Univ.)

P14. Magnetic traps for atoms using superconducting micro-structures

Taro Eichler, Alexander Kasper, Munekazu Horikoshi, Tetsuya Mukai,

Fujio Shimizu (NTT/UEC/ CREST)

P15. Experimental confirmation of entanglement in orbital angular momentum states of photons by scanning the position of a hologram

Daisuke Kawase(Hokkaido Univ.), Kenji Tsujino(Hokkaido Univ./NICT),

Shigeki Takeuchi (Hokkaido Univ./PRESTO), Keiji Sasaki(Hokkaido Univ.),

Atsushi Wada, Hiroyuki Ohminato, Yoko Miyamoto, Mitsuo Takeda (UEC)

P16. Orthonormal bases generated by phase-shifted Schrodinger-cat states

Jonas Soderholm (SOKEN/CREST), Nobuyuki Imoto(SOKEN/CREST/NTT)

P17. Estimation of the photon number distribution of correlated photon pairs using a PPLN waveguide

Keiichi Hirano, Masayuki Motoya (Univ. of Nihon),

Sigehiko Mori (Shibaura Mechatronics Corporation), Shuichiro Inoue (Univ. of Nihon)

P18. Influences of Decoherence on Quantum Counting

Jun Hasegawa (Univ. of Tokyo / ERATO), Fumitaka Yura (ERATO)

P19. An Application of Quantum Authentication Protocols for Quantum Key Agreement

Eguchi Makoto, Hagiwara Manabu, Hideki Imai (Univ. of Tokyo)

P20. Strong converse property of classical information transmission and entanglement dilution: with some comment about additivity problem

Keiji Matsumoto (NII/JST)