171 citations
- Stanford UniversityUS6 papers
- Hewlett-Packard (United Kingdom)GB5 papers
- The University of TokyoJP4 papers
- Bristol Laboratories (United Kingdom)GB3 papers
- Centre for Quantum Computation and Communication TechnologyAU2 papers
- Centre for Quantum TechnologiesSG2 papers
- Chinese Academy of SciencesCN2 papers
- Hebei Normal UniversityCN2 papers
- Hewlett-Packard (Japan)JP2 papers
- Hewlett-Packard (United States)US2 papers
- Hirosaki UniversityJP2 papers
- Institute of High Energy PhysicsCN2 papers
17 papers · 1 filter
Generalized Toffoli gates using qudit catalysis
Radu Ionicioiu, Timothy P. Spiller, William J. Munro
We present quantum networks for a n-qubit controlled gate C^{n-1}(U) which use a higher dimensional (qudit) ancilla as a catalyser. In its simplest form the network has only n two-…
Single photon quantum non-demolition in the presence of inhomogeneous broadening
Andrew D. Greentree, R. G. Beausoleil, L. C. L. Hollenberg +4
Electromagnetically induced transparency (EIT) has been often proposed for generating nonlinear optical effects at the single photon level; in particular, as a means to effect a qu…
Fourier Analytic Approach to Phase Estimation
Hiroshi Imai, Masahito Hayashi
For a unified analysis on the phase estimation, we focus on the limiting distribution. It is shown that the limiting distribution can be given by the absolute square of the Fourier…
Oracularization and Two-Prover One-Round Interactive Proofs against Nonlocal Strategies
Tsuyoshi Ito, Hirotada Kobayashi, Keiji Matsumoto
A central problem in quantum computational complexity is how to prevent entanglement-assisted cheating in multi-prover interactive proof systems. It is well-known that the standard…
Unconditional Security of Single-Photon Differential Phase Shift Quantum Key Distribution
Kai Wen, Kiyoshi Tamaki, Yoshihisa Yamamoto
In this Letter, we prove the unconditional security of single-photon differential phase shift quantum key distribution (DPS-QKD) protocol, based on the conversion to an equivalent…
Teleportation of composite systems for communication and information processing
Sebastien G. R. Louis, Andrew D. Greentree, W. J. Munro +1
We describe two protocols for efficient data transmission using a single passive bus. Different types of interactions are obtained enabling deterministic transfer and teleportation…