DocumentCode
2861005
Title
Continuous phase-shift quantum key distribution
Author
Sych, Denis ; Leuchs, Gerd
Author_Institution
Max Planck Inst. for the Sci. of Light, Erlangen, Germany
fYear
2009
fDate
14-19 June 2009
Firstpage
1
Lastpage
1
Abstract
In this paper we continue the idea of improving QKD by varying a quantum alphabet. We introduce a protocol for continuous variable QKD, where information is encoded in continuously modulated phase of coherent states of light (continuous phase-shift keying). The corresponding quantum alphabet is a circle in phase space, thus the proposed protocol is in a certain sense in between binary modulation and Gaussian modulation.
Keywords
phase shift keying; protocols; quantum cryptography; Gaussian modulation; binary modulation; coherent states; continuous phase-shift keying; continuous phase-shift quantum key distribution; continuous variable QKD; quantum alphabet; Continuous phase modulation; Cryptographic protocols; Cryptography; Error correction; Optical modulation; Optical receivers; Optical sensors; Phase modulation; Phase shift keying; Photonics;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location
Munich
Print_ISBN
978-1-4244-4079-5
Electronic_ISBN
978-1-4244-4080-1
Type
conf
DOI
10.1109/CLEOE-EQEC.2009.5196231
Filename
5196231
Link To Document