Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Kyongchun Lim"'
Autor:
Minchul Kim, Kyongchun Lim, Joong-Seon Choe, Byung-Seok Choi, Kap-Joong Kim, Ju Hee Baek, Chun Ju Youn
Publikováno v:
ETRI Journal, Vol 46, Iss 5, Pp 806-816 (2024)
In this study, we report a transmitter system for free-space quantum key distri-bution (QKD) using the BB84 protocol, which does not require an internal alignment process, by using a wavelength-division multiplexing (WDM) filter and polarization-enco
Externí odkaz:
https://doaj.org/article/b5719f799cfa492abc0cf751198b2cd1
Autor:
Kyongchun Lim, Byung-Seok Choi, Joong-Seon Choe, Ju Hee Baek, Minchul Kim, Kap-Joong Kim, Chun Ju Youn
Publikováno v:
Optical Fiber Communication Conference (OFC) 2023.
Free-space quantum key distribution usually requires limited space and weight. We implement reference frame independent quantum key distribution protocol with chip-scale integrated optical circuits such as laser diode, variable optical attenuator, an
Autor:
Minchul Kim, Kyongchun Lim, Chun Ju Youn, Joong-Seon Choe, Ju Hee Baek, Kap-Joong Kim, Byung-Seok Choi, Young-Ho Ko
Publikováno v:
Optics express. 29(12)
One of the challenging issues in free-space quantum key distribution (QKD) is the requirement of active compensation of the reference frame between the transmitter and receiver. Reference frame independent (RFI) QKD removes active compensation, but i
Publikováno v:
The Journal of Korean Institute of Communications and Information Sciences. 43:152-160
Publikováno v:
Quantum Information Processing. 18
One of the limitations of continuous variable quantum key distribution is the relatively short transmission distance of secure keys. Some solutions have been proposed to overcome the limitation including reverse reconciliation, trusted noise concept,
Publikováno v:
Quantum Information Processing. 15:4265-4282
Quantum channel loopholes due to imperfect implementations of practical devices expose quantum key distribution (QKD) systems to potential eavesdropping attacks. Even though QKD systems are implemented with optical devices that are highly selective o
Publikováno v:
IEEE Transactions on Multimedia. 18:1163-1174
Internet content caching for multimedia services has received much attention mainly in the field of large-scale wired networking as a primary solution to save network resources and improve quality of service (QoS). Rapidly increasing consumption of m
Autor:
Kyongchun Lim, John Dongho Shinn, Yonghwan Bang, Ja-Ryeong Koo, Chang Hee Yun, Junyoung Park, Jongmin Lee, Hong-Ik Kim, Kyungsoo Park, Jonggyu Sung, Taesang Choi, June-Koo Kevin Rhee, Sungmin Jo, Giyoung Nam, Young-il Seo
Publikováno v:
IEEE Communications Magazine. 54:94-100
Content delivery service has become a major traffic load on today's Internet, and this has triggered the interest of ISPs in operating their own content delivery networks (CDNs) to optimize Internet traffic considering both content delivery caching a
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 21:178-186
The tolerance bound for quantum symbol error rate in a multi-qubit quantum key distribution system is derived in consideration of an incoherent attack on a single-photon quantum channel, where multi-qubit encoding and measurement can be applied to a
Publikováno v:
OPTICS EXPRESS(25): 10
Needs for providing security to end users have brought installation of quantum key distribution (QKD) in one-to-many access networks such as passive optical networks. In the networks, a presence of optical power splitters makes issues for secure key