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quant-ph2000
Quantum authentication and key distribution using catalysis
Jens G Jensen, Ruediger Schack
Starting from Barnum's recent proposal to use entanglement and catalysis for quantum secure identification [quant-ph/9910072], we describe a protocol for quantum authentication and…
quant-ph1997
Hypersensitivity to perturbation: An information-theoretical characterization of classical and quantum chaos
Ruediger Schack, Carlton M. Caves
Hypersensitivity to perturbation is a criterion for chaos based on the question of how much information about a perturbing environment is needed to keep the entropy of a Hamiltonia…