Secure Communication with a Publicly Known Key

• Authors: A. Beige , B. Englert , Ch. Kurtsiefer , H. Weinfurter
• Languages of publication: EN

Abstracts

EN

We present a scheme for direct and confidential communication between Alice and Bob, where there is no need for establishing a shared secret key first, and where the key used by Alice even will become known publicly. The communication is based on the exchange of single photons and each and every photon transmits one bit of Alice's message without revealing any information to a potential eavesdropper.

Keywords

EN

03.67.Dd; 42.79.Sz

Discipline

• 03.67.Dd: Quantum cryptography and communication security
• 42.79.Sz: Optical communication systems, multiplexers, and demultiplexers(for fiber networks, see 42.81.Uv)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2002
• Volume: 101
• Issue: 3
• Pages: 357-368

Dates

published

2002-03

received

2001-06-20

Contributors

author

A. Beige

• Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1. 85748 Garching, Germany

author

B. Englert

• Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1. 85748 Garching, Germany
• Departments of Mathematics and Physics, Texas A & M University, College Station, Texas 77843, U.S.A.

author

Ch. Kurtsiefer

• Sektion Physik, Universität München, Schellingstrasse 4, 80799 München, Germany

author

H. Weinfurter

• Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1. 85748 Garching, Germany
• Sektion Physik, Universität München, Schellingstrasse 4, 80799 München, Germany

References

• 1. C.H. Bennett, G. Brassard, in: Proc. IEEE Int. Conf. on Computers, Systems, and Signal Processing, Bangalore, IEEE, New York 1984, p. 175
• 2. L. Vaidman, Y. Aharonov, D.Z. Albert, Phys. Rev. Lett., 58, 1385, 1987
• 3. Y. Aharonov, B.-G. Englert, Z. Naturforsch. A, 56, 16, 2001
• 4. B.-G. Englert, C. Kurtsiefer, H. Weinfurter, Phys. Rev. A, 63, 032303, 2001
• 5. A. Beige, B.-G. Englert, C. Kurtsiefer, H. Weinfurter, quant-ph/0101066 (2001)
• 6. A. Beige, B.-G. Englert, C. Kurtsiefer, H. Weinfurter, in: Mathematics of Quantum Computation, Eds. J.-L. Brylinski, G. Chen, CRC Press, Boca Raton 2002 (in press)
• 7. C.H. Bennett, Phys. Rev. Lett., 68, 3121, 1992
• 8. D. Bruss, Phys. Rev. Lett., 81, 3018, 1998
• 9. M. Bourennane, A. Karlsson, G. Bjork, Phys. Rev. A, 64, 012306, 2001
• 10. A. Ekert, Phys. Rev. Lett., 67, 661, 1991
• 11. L. Goldenberg, L. Vaidman, Phys. Rev. Lett., 75, 1239, 1995
• 12. J. Kim, O. Benson, H. Kan, Y. Yamamoto, Nature, 397, 500, 1999
• 13. C. Kurtsiefer, S. Mayer, P. Zarda, H. Weinfurter, Phys. Rev. Lett., 85, 290, 2000
• 14. M. Hennrich, T. Legero, A. Kuhn, G. Rempe, Phys. Rev. Lett., 85, 4872, 2000
• 15. B. Lounis, W.E. Moerner, Nature, 407, 491, 2000

Identifiers

DOI

10.12693/APhysPolA.101.357