Experimental comparison between one-decoy and two-decoy implementations of the Bennett-Brassard 1984 quantum cryptography protocol

Title
Experimental comparison between one-decoy and two-decoy implementations of the Bennett-Brassard 1984 quantum cryptography protocol
Authors
정연창김용수김윤호
Keywords
Quantum Key Distribution; BB84 protocol; SARG04 protocol
Issue Date
2016-01
Publisher
Physical review. A
Citation
VOL 93, 012322-1-012322-5
Abstract
The decoy-state method allows the use of weak coherent pulses in quantum cryptography, and to date, various strategies for the decoy state have been proposed. Here, we experimentally compare the secret key generation rates between the one-decoy and two-decoy implementations of the Bennett-Brassard 1984 (BB84) quantum key distribution protocol through a 3.1-km optical fiber at 780 nm. Once the parameters of the experimental setup are optimized for the maximal secret key generation rate for each implementation, it is found that the two-decoy implementation outperforms the one-decoy implementation.
URI
http://pubs.kist.re.kr/handle/201004/58541
ISSN
10502947
Appears in Collections:
KIST Publication > Article
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