Work

Source monitoring for continuous-variable quantum key distribution

Year: 2012

Type: article

Abstract: The noise in optical source preparation needs to be characterized for the security of practical continuous-variable quantum key distribution (CVQKD). Two feasible schemes, based on either an active optical switch or a passive beamsplitter, are proposed to monitor the variance of the source noise. We derive the security bounds for both schemes against collective attacks in the asymptotical limit and find that the passive scheme performs better. The finite-size effect is also discussed briefly for both schemes.

Source: Physical Review A

DOI: 10.1103/physreva.86.042314

Authors: Jian Yang, Bingjie Xu, Hong Guo

Institutions: Peking University, State Key Laboratory of Advanced Optical Communication Systems and Networks, State Key Laboratory of Advanced Optical Communication Systems and Networks

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2017018000

FWCI: 2.525

Cites: 22

Cited by: 23

Related to: 10