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Title: Eavesdropping without quantum memory

Journal Article · · Physical Review. A
DOI:https://doi.org/10.1103/PHYSREVA.73.0· OSTI ID:20787173
 [1]
  1. Dipartimento di Fisica 'A. Volta', University of Pavia, via Bassi 6, I-27100 Pavia, Italy and UCCI.IT, via Olmo 26, I-23888 Rovagnate (Italy)

In quantum cryptography the optimal eavesdropping strategy requires that the eavesdropper uses ancillas and quantum memories in order to optimize her information. What happens if the eavesdropper has no quantum memory? It is shown that in this case the eavesdropper obtains a better information/disturbance trade-off by adopting the simple intercept/resend strategy.

OSTI ID:
20787173
Journal Information:
Physical Review. A, Vol. 73, Issue 4; Other Information: DOI: 10.1103/PhysRevA.73.044305; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
Country of Publication:
United States
Language:
English

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