Characterizing Bell state analyzer using weak coherent pulses

Title
Characterizing Bell state analyzer using weak coherent pulses
Authors
문성욱한상욱김용수조영욱정호중임향택이동화
Keywords
양자컴퓨팅; 양자통신
Issue Date
2021-04
Publisher
Quantum information processing
Citation
VOL 20, 149
Abstract
Bell state analyzer (BSA) is one of the most crucial apparatuses in photonic quantum information processing. While linear optics provide a practical way to implement BSA, it provides unavoidable errors when inputs are not ideal single-photon states. Here, we propose a simple method to deduce the BSA for single-photon inputs using weak coherent pulses. By applying the method to Reference-Frame-Independent Measurement-Device-Independent Quantum Key Distribution, we experimentally verify the feasibility and effectiveness of the method.
URI
http://pubs.kist.re.kr/handle/201004/73065
ISSN
1570-0755
Appears in Collections:
KIST Publication > Article
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