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13 papers · 2 filters
Loss-tolerant quantum cryptography with imperfect sources
Kiyoshi Tamaki, Marcos Curty, Go Kato +2
In principle, quantum key distribution (QKD) offers unconditional security based on the laws of physics. In practice, flaws in the state preparation undermine the security of QKD s…
An on-chip coupled resonator optical waveguide single-photon buffer
Hiroki Takesue, Nobuyuki Matsuda, Eiichi Kuramochi +2
Integrated quantum optical circuits are now seen as one of the most promising approaches with which to realize single photon quantum information processing. Many of the core elemen…
Quantum Algorithms for Finding Constant-sized Sub-hypergraphs
François Le Gall, Harumichi Nishimura, Seiichiro Tani
We develop a general framework to construct quantum algorithms that detect if a -uniform hypergraph given as input contains a sub-hypergraph isomorphic to a prespecified constan…
Sampling generalized cat states with linear optics is probably hard
Peter P. Rohde, Keith R. Motes, Paul Knott +3
Boson-sampling has been presented as a simplified model for linear optical quantum computing. In the boson-sampling model, Fock states are passed through a linear optics network an…
All photonic quantum repeaters
Koji Azuma, Kiyoshi Tamaki, Hoi-Kwong Lo
Quantum communication holds promise for unconditionally secure transmission of secret messages and faithful transfer of unknown quantum states. Photons appear to be the medium of c…
Photonic architecture for scalable quantum information processing in NV-diamond
Kae Nemoto, Michael Trupke, Simon J. Devitt +6
Physics and information are intimately connected, and the ultimate information processing devices will be those that harness the principles of quantum mechanics. Many physical syst…