Quantum non-demolition measurement of nonlocal variables and its application in quantum authentication

Details Quantum non-demolition measurement of nonlocal variables and its application in quantum authentication Quantum non-demolition measurement of nonlocal variables and its application in quantum authentication

2001-03-15

arxiv.org/abs/quant-ph/0103088v1

Phys. Lett. A 286,401 (2001).

Physics

Quantum Physics

5 Pages, 3 Figures

Scientific paper

10.1016/S0375-9601(01)00420-0

Quantun non-demolition (QND) variables are generlized to the nonlocal ones by proposing QND measurement networks of Bell states and multi-partite GHZ states, which means that we can generate and measure them without any destruction. One of its prospective applications in the quantum authentication system of the Quantum Security Automatic Teller Machine (QSATM) which is much more reliable than the classical ones is also presented.

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