Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 013108 |
| Seitenumfang | 1 |
| Fachzeitschrift | Rev. Sci. Instrum. |
| Jahrgang | 85 |
| Publikationsstatus | Veröffentlicht - 2013 |
Abstract
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in: Rev. Sci. Instrum., Jahrgang 85, 2013, S. 013108.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - A universal setup for active control of a single-photon detector
AU - Liu, Qin
AU - Lamas-Linares, Antia
AU - Kurtsiefer, Christian
AU - Skaar, Johannes
AU - Makarov, Vadim
AU - Gerhardt, Ilja
PY - 2013
Y1 - 2013
N2 - The influence of bright light on a single-photon detector has been described in a number of recent publications. The impact on quantum key distribution (QKD) is important, and several hacking experiments have been tailored to fully control single-photon detectors. Special attention has been given to avoid introducing further errors into a QKD system. We describe the design and technical details of an apparatus which allows to attack a quantum-cryptographic connection. This device is capable of controlling free-space and fiber-based systems and of minimizing unwanted clicks in the system. With different control diagrams, we are able to achieve a different level of control. The control was initially targeted to the systems using BB84 protocol, with polarization encoding and basis switching using beamsplitters, but could be extended to other types of systems. We further outline how to characterize the quality of active control of single-photon detectors.
AB - The influence of bright light on a single-photon detector has been described in a number of recent publications. The impact on quantum key distribution (QKD) is important, and several hacking experiments have been tailored to fully control single-photon detectors. Special attention has been given to avoid introducing further errors into a QKD system. We describe the design and technical details of an apparatus which allows to attack a quantum-cryptographic connection. This device is capable of controlling free-space and fiber-based systems and of minimizing unwanted clicks in the system. With different control diagrams, we are able to achieve a different level of control. The control was initially targeted to the systems using BB84 protocol, with polarization encoding and basis switching using beamsplitters, but could be extended to other types of systems. We further outline how to characterize the quality of active control of single-photon detectors.
KW - Quantum Key Distribution
KW - Quantum Cryptography
KW - QKD
KW - Quantum Hacking
KW - Single Photon Detectors
M3 - Article
VL - 85
SP - 013108
JO - Rev. Sci. Instrum.
JF - Rev. Sci. Instrum.
SN - 1089-7623
ER -