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» Quantum cryptography beyond quantum key distribution
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EUROCRYPT
2005
Springer
14 years 2 months ago
Computational Indistinguishability Between Quantum States and Its Cryptographic Application
We introduce a computational problem of distinguishing between two specific quantum states as a new cryptographic problem to design a quantum cryptographic scheme that is “secu...
Akinori Kawachi, Takeshi Koshiba, Harumichi Nishim...
CPHYSICS
2007
71views more  CPHYSICS 2007»
13 years 8 months ago
Simulation of n-qubit quantum systems. III. Quantum operations
During the last decade, several quantum information protocols, such as quantum key distribution, teleportation or quantum computation, have attracted a lot of interest. Despite th...
T. Radtke, S. Fritzsche
JELIA
2004
Springer
14 years 2 months ago
Reasoning About Quantum Systems
Abstract. A new logic is proposed for reasoning about quantum systems. The logic embodies the postulates of quantum physics and it was designed from the semantics upwards by identi...
Paulo Mateus, Amílcar Sernadas
JACM
2006
146views more  JACM 2006»
13 years 8 months ago
Limits on the ability of quantum states to convey classical messages
We revisit the problem of conveying classical messages by transmitting quantum states, and derive new, optimal bounds on the number of quantum bits required for this task. Much of...
Ashwin Nayak, Julia Salzman
CRYPTO
2005
Springer
107views Cryptology» more  CRYPTO 2005»
14 years 2 months ago
A Quantum Cipher with Near Optimal Key-Recycling
Abstract. Assuming an insecure quantum channel and an authenticated classical channel, we propose an unconditionally secure scheme for encrypting classical messages under a shared ...
Ivan Damgård, Thomas Brochmann Pedersen 0002...