Quantum secret sharing based on reusable GHZ states as secure carriers

Details Quantum secret sharing based on reusable GHZ states as secure carriers Quantum secret sharing based on reusable GHZ states as secure carriers

2002-04-21

arxiv.org/abs/quant-ph/0204124v2

Physical Rev. A, 67, 044302 (2003).

Physics

Quantum Physics

9 pages, no figures, latex; major revisons, Accepted for Publication in Physical Rev. A

Scientific paper

10.1103/PhysRevA.67.044302

We introduce a protocol for quantum secret sharing based on reusable entangled states. The entangled state between the sender and the receiver acts only as a carrier to which data bits are entangled by the sender and disentangled from it by the receivers, all by local actions of simple gates. We also show that the interception by Eve or the cheating of one of the receivers introduces a quantum bit error rate (QBER) larger than 25 percent which can be detected by comparing a subsequence of the bits.

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