Certain quantum key distribution achieved by using Bell states

Details Certain quantum key distribution achieved by using Bell states Certain quantum key distribution achieved by using Bell states

2003-10-12

arxiv.org/abs/quant-ph/0310077v3

International Journal of Quantum Information Vol. 4, No. 6 (2006) 1-8

Physics

Quantum Physics

6 pages

Scientific paper

A new protocol for quantum key distribution based on entanglement swapping is
presented. In this protocol, both certain key and random key can be generated
without any loss of security. It is this property differs our protocol from the
previous ones. The rate of generated key bits per particle is improved which
can approach six bits (4 random bits and 2 certain bits) per four particles.

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