Proposal of an eavesdropping experiment for BB84 QKD protocol with 1-->3 phase-covariant quantum doner
Abstract
We propose an experimental implementation of a particular attack against the BB84 quantum key distribution protocol, utilizing a 1→3 asymmetric phase-covariant quantum cloning. Our eavesdropping strategy is numerically optimized to extract the information about the input state. The proposed cloning circuit is easily implementable with linear optics and its performances turn out to be well close to the optimum attack.
- Publication:
-
Quantum Communication, Measurement and Computing (QCMC): Ninth International Conference on Qcmc
- Pub Date:
- April 2009
- DOI:
- 10.1063/1.3131347
- arXiv:
- arXiv:0806.1778
- Bibcode:
- 2009AIPC.1110..355O
- Keywords:
-
- 42.50.-p;
- 42.50.Dv;
- 03.67.Hk;
- Quantum optics;
- Nonclassical states of the electromagnetic field including entangled photon states;
- quantum state engineering and measurements;
- Quantum communication;
- Quantum Physics
- E-Print:
- doi:10.1063/1.3131347