Published July 11, 2003
| Version v1
Journal article
Efficient sharing of a continuous-variable quantum secret
Creators
- 1. Department of Physics and Centre for Advanced Computing-Algorithms and Cryptography, Macquarie University, Sydney, NSW 2109 (Australia)
Description
We propose an efficient scheme for sharing a continuous-variable quantum secret using passive optical interferometry and squeezers: this efficiency is achieved by showing that a maximum of two squeezers is required to extract the secret state, and we obtain the cheapest configuration in terms of total squeezing cost. Squeezing is a cost for the dealer of the secret as well as for the receivers, and we quantify limitations to the fidelity of the extracted secret state in terms of the squeezing employed by the dealer
Availability note (English)
Available online at http://stacks.iop.org/0305-4470/36/7625/a32714.pdf or at the Web site for the Journal of Physics. A, Mathematical and General (ISSN 1361-6447) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0305-4470/36/7625/a32714.pdf; http://www.iop.org/;
- DOI
- 10.1088/0305-4470/36/27/314;
- PII
- S0305-4470(03)58372-X;
Publishing Information
- Journal Title
- Journal of Physics. A, Mathematical and General
- Journal Volume
- 36
- Journal Issue
- 27
- Journal Page Range
- p. 7625-7637
- ISSN
- 0305-4470
- CODEN
- JPHAC5
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35000517
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- COMMUNICATIONS; INFORMATION THEORY; INTERFEROMETRY; QUANTUM MECHANICS; SIGNALS
- Descriptors DEC
- MECHANICS