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quant-ph2007★ 88 cited
Testing Quantum Devices: Practical Entanglement Verification in Bipartite Optical Systems
Hauke Häseler, Tobias Moroder, Norbert Lütkenhaus
We present a method to test quantum behavior of quantum information processing devices, such as quantum memories, teleportation devices, channels and quantum key distribution proto…
quant-ph2007★ 31 cited
Quantum Cryptography: from Theory to Practice
Hoi-Kwong Lo, Norbert Lütkenhaus
Quantum cryptography can, in principle, provide unconditional security guaranteed by the law of physics only. Here, we survey the theory and practice of the subject and highlight s…
quant-ph2007★ 23 cited
Optimal unambiguous state discrimination of two density matrices: A second class of exact solutions
Philippe Raynal, Norbert Lütkenhaus
We consider the Unambiguous State Discrimination (USD) of two mixed quantum states. We study the rank and the spectrum of the elements of an optimal USD measurement. This naturally…