2.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP171 papers
- The Graduate University for Advanced Studies, SOKENDAIJP129 papers
- NTT Basic Research LaboratoriesJP96 papers
- Stanford UniversityUS80 papers
- Japan Science and Technology AgencyJP63 papers
- NTT (Japan)JP60 papers
- Centre National de la Recherche ScientifiqueFR55 papers
- New York UniversityUS49 papers
- New York University ShanghaiCN49 papers
- Hewlett-Packard (United Kingdom)GB41 papers
- East China Normal UniversityCN38 papers
- Japanese-French Laboratory for InformaticsJP38 papers
18 papers · 1 filter
Observation of PeV Gamma Rays from the Monogem Ring with the Tibet Air Shower Array
The Tibet AS Gamma Collaboration, M. Amenomori
We searched for steady PeV gamma-ray emission from the Monogem ring region with the Tibet air shower array from 1997 February to 2004 October. No evidence for statistically signifi…
Review article: Linear optical quantum computing
Pieter Kok, W. J. Munro, Kae Nemoto +3
Linear optics with photon counting is a prominent candidate for practical quantum computing. The protocol by Knill, Laflamme, and Milburn [Nature 409, 46 (2001)] explicitly demonst…
Are protons still dominant at the knee of the cosmic-ray energy spectrum?
The Tibet AS Gamma Collaboration, M. Amenomori
A hybrid experiment consisting of emulsion chambers, burst detectors and the Tibet II air-shower array was carried out at Yangbajing (4,300 m a.s.l., 606 g/cm) in Tibet to obta…
Quantum error correction via robust probe modes
Fumiko Yamaguchi, Kae Nemoto, William J. Munro
We propose a new scheme for quantum error correction using robust continuous variable probe modes, rather than fragile ancilla qubits, to detect errors without destroying data qubi…
Simulating lattice gauge theories on a quantum computer
Tim Byrnes, Yoshihisa Yamamoto
We examine the problem of simulating lattice gauge theories on a universal quantum computer. The basic strategy of our approach is to transcribe lattice gauge theories in the Hamil…
Hybrid quantum repeater using bright coherent light
P. van Loock, T. D. Ladd, K. Sanaka +4
We describe a quantum repeater protocol for long-distance quantum communication. In this scheme, entanglement is created between qubits at intermediate stations of the channel by u…
Implementing Non-Projective Measurements via Linear Optics: an Approach Based on Optimal Quantum State Discrimination
Peter van Loock, Kae Nemoto, William J. Munro +2
We discuss the problem of implementing generalized measurements (POVMs) with linear optics, either based upon a static linear array or including conditional dynamics. In our approa…
Quantum Computation by Communication
T. P. Spiller, Kae Nemoto, Samuel L. Braunstein +3
We present a new approach to scalable quantum computing--a ``qubus computer''--which realises qubit measurement and quantum gates through interacting qubits with a quantum communic…
Universal entanglement concentration
Keiji Matsumoto, Masahito Hayashi
We propose a new protocol of \textit{universal} entanglement concentration, which converts many copies of an \textit{unknown} pure state to an \textit{% exact} maximally entangled…
Feed-forward and its role in conditional linear optical quantum dynamics
S. Scheel, W. J. Munro, J. Eisert +2
Nonlinear optical quantum gates can be created probabilistically using only single photon sources, linear optical elements and photon-number resolving detectors. These gates are he…
Security of differential phase shift quantum key distribution against individual attacks
Edo Waks, Hiroki Takesue, Yoshihisa Yamamoto
We derive a proof of security for the Differential Phase Shift Quantum Key Distribution (DPSQKD) protocol under the assumption that Eve is restricted to individual attacks. The sec…
Weak nonlinearities: A new route to optical quantum computation
W. J. Munro, Kae Nemoto, T. P. Spiller
Quantum information processing (QIP) offers the promise of being able to do things that we cannot do with conventional technology. Here we present a new route for distributed optic…
Universal quantum computation on the power of quantum non-demolition measurements
Kae Nemoto, W. J. Munro
In this paper we investigate the linear and nonlinear models of optical quantum computation and discuss their scalability and efficiency. We show how there are significantly differ…
Efficient optical quantum information processing
W. J. Munro, Kae Nemoto, T. P. Spiller +3
Quantum information offers the promise of being able to perform certain communication and computation tasks that cannot be done with conventional information technology (IT). Optic…
Yet another additivity conjecture
Keiji Matsumoto
It is known that the additivity conjecture of Holevo capacity, output minimum entoropy, and the entanglement of formation (EoF), are equivalent with each other. Among them, the out…
Large-Scale Sidereal Anisotropy of Galactic Cosmic-Ray Intensity Observed by the Tibet Air Shower Array
The Tibet AS Gamma Collaboration, M. Amenomori
We present the large-scale sidereal anisotropy ofgalactic cosmic-ray intensity in the multi-TeV region observed with the Tibet-IIIair shower array during the period from 1999 throu…
A study of LOCC-detection of a maximally entangled state using hypothesis testing
Masahito Hayashi, Keiji Matsumoto, Yoshiyuki Tsuda
We study how well answer to the question ``Is the given quantum state equal to a certain maximally entangled state?'' using LOCC, in the context of hypothesis testing. Under severa…
A Northern Sky Survey for Steady TeV Gamma-Ray Point Sources Using the Tibet Air Shower Array
gamma Collaboration, M. Amenomori
Results on steady TeV -ray point source search using data taken from the Tibet HD (Feb. 1997 -- Sep. 1999) and Tibet III (Nov. 1999 -- Oct. 2001) arrays are presented. From $0^{…