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Practical quantum cryptography based on two-photon interferometry.

Abstract:
We propose an experimental realization of cryptographic-key-sharing scheme exploiting quantum correlations between pair photons. Our experimental setup consists of an external source of correlated photon pairs which propagate to two widely separated unbalanced Mach-Zehnder interferometers. The probability of detection of photon pairs in any two outputs of the interferometers can be fully modulated by phase plates in either interferometer. © 1992 The American Physical Society.
Publication status:
Published

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Publisher copy:
10.1103/physrevlett.69.1293

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Institution:
University of Oxford
Department:
Oxford, MPLS, Mathematical Inst
Role:
Author
Journal:
Physical review letters
Volume:
69
Issue:
9
Pages:
1293-1295
Publication date:
1992-08-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:05c527f9-d372-4f5f-99dd-6258d17ee42f
Source identifiers:
10974
Local pid:
pubs:10974
Language:
English

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