Free space relativistic quantum cryptography with faint laser pulses
نویسنده
چکیده
A new protocol for quantum key distribution through empty space is proposed. Apart from the quantum mechanical restrictions on distinguishability of non-orthogonal states, the protocol employs additional restrictions imposed by special relativity. The protocol ensures generation of a secure key even for the source generating non-strictly single-photon quantum states and for arbitrary losses in quantum communication channel.
منابع مشابه
Quantum cryptography
Quantum cryptography could well be the first application of quantum mechanics at the single-quantum level. The rapid progress in both theory and experiment in recent years is reviewed, with emphasis on open questions and technological issues. CONTENTS I. Introduction 145 II. A Beautiful Idea 146 A. The intuition 146 B. Classical cryptography 147 1. Asymmetrical (public-key) cryptosystems 147 2....
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