https://doi.org/10.1140/epjd/e20020021
Entanglement purification with noisy apparatus can be used to factor out an eavesdropper
Sektion Physik, Ludwig-Maximilians-Universität,
Theresienstr. 37, 80333 München, Germany
Corresponding author: a hans.aschauer@physik.uni-muenchen.de
Received:
10
August
2001
Revised:
26
October
2001
Published online: 15 February 2002
We give a proof that entanglement purification, even with noisy apparatus, is sufficient to disentangle an eavesdropper (Eve) from the communication channel. Our proof applies to all possible attacks (individual and coherent). Due to the quantum nature of the entanglement purification protocol, it is also possible to use the obtained quantum channel for secure transmission of quantum information.
PACS: 03.67.Dd – Quantum cryptography / 03.67.Hk – Quantum communication
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2002
