Results 21 to 30 of about 11,163,079 (212)

1002 km twin-field quantum key distribution with finite-key analysis

Quantum Frontiers, 2023
Quantum key distribution (QKD) holds the potential to establish secure keys over long distances. The distance of point-to-point QKD secure key distribution is primarily impeded by the transmission loss inherent to the channel.
Yang Liu, Wei-Jun Zhang, Cong Jiang, Jiu-Peng Chen, Di Ma, Chi Zhang, Wen-Xin Pan, Hao Dong, Jia-Min Xiong, Cheng-Jun Zhang, Hao Li, Rui-Chun Wang, Chao-Yang Lu, Jun Wu, Teng-Yun Chen, Lixing You, Xiang-Bin Wang, Qiang Zhang, Jian-Wei Pan   +18 more
doaj   +1 more source

A Design of Secure Communication Architecture Applying Quantum Cryptography

Journal of Information Science Theory and Practice, 2022
Existing network cryptography systems are threatened by recent developments in quantum computing. For example, the Shor algorithm, which can be run on a quantum computer, is capable of overriding public key-based network cryptography systems in a short ...
Kyu-Seok Shim, Yong-Hwan Kim, Wonhyuk Lee   +2 more
doaj   +1 more source

Practical long-distance quantum key distribution system using decoy levels [PDF]

, 2009
Quantum key distribution (QKD) has the potential for widespread real-world applications, but no secure long-distance experiment has demonstrated the truly practical operation needed to move QKD from the laboratory to the real world due largely to ...
Nordholt, J.E., Dallmann, N., McCabe, K.P., Hughes, R.J., McCabe, K. P., Nam, S., Rice, P. R., Hughes, R. J., Hadfield, R.H., Harrington, J. W., Hadfield, R. H., Nordholt, J. E., Rosenberg, D., Harrington, J.W., Rice, P.R., Tyagi, K. T., Tyagi, K.T., Baek, B., Peterson, C. G., Peterson, C.G.   +19 more
core   +1 more source

Quantum key distribution using quantum dot single-photon emitting diodes in the red and near infrared spectral range [PDF]

, 2012
We report on in-lab free space quantum key distribution (QKD) experiments over 40 cm distance using highly efficient electrically driven quantum dot single-photon sources emitting in the red as well as near-infrared spectral range.
Heindel, Tobias, Eichfelder, Marcus, Hargart, F., Michler, P., Eichfelder, M., Rossbach, R., Kessler, C., Rau, Markus, Weinfurter, Harald, Reitzenstein, S., Höfling, Sven, Schneider, C., Lermer, Matthias, Nauerth, Sebastian, Rossbach, Robert, Fuerst, M., Forchel, A., Forchel, Alfred, Reitzenstein, Stephan, Weinfurter, H., Kessler, Christian A., Schulz, W., Weier, Henning, Fuerst, Martin, Hoefling, S., Rau, M., Schulz, Wolfgang-Michael, Michler, Peter, Nauerth, S., Jetter, M., Schneider, Christian, Jetter, Michael, Lermer, M., Weier, H., Heindel, T., Hargart, Fabian, Kamp, Martin, Kamp, M.   +37 more
core   +1 more source

Analysis of detector performance in a gigahertz clock rate quantum key distribution system [PDF]

, 2011
We present a detailed analysis of a gigahertz clock rate environmentally robust phase-encoded quantum key distribution (QKD) system utilizing several different single-photon detectors, including the first implementation of an experimental resonant cavity
Mikio Fujiwara, R. H. Hadfield, Townsend, Paul D., Shigehito Miki, Wang, Zhen, C. M. Natarajan, GHIONI, MASSIMO ANTONIO, Collins, R.J., Garcia-Martinez, Maria-Jose, M. Fujiwara, Robert J Collins, M. Sasaki, Tanner, Michael G.; id_orcid, Patrick J Clarke, Sasaki, M., Wang, Z., R. J. Collins, Chandra M Natarajan, Buller, Gerald S., N. J. Krichel, O'Connor, John A., Gerald S Buller, María-José García-Martínez, García-Martínez, M.-J., Masahide Sasaki, Fujiwara, M., Krichel, N.J., Tanner, M.G., G. S. Buller, Nils J Krichel, Ivan Rech, Hadfield, Robert H., Rech, Ivan, Ghioni, M., Aongus McCarthy, Natarajan, C.M., Rech, I., P. A. Hiskett, Gulinatti, Angelo, Collins, Robert J., Townsend, P., Robert H Hadfield, M. García Martínez, A. McCarthy, P. J. Clarke, Miki, Shigehito, Massimo Ghioni, Angelo Gulinatti, Gulinatti, A., Paul D Townsend, Miki, S., Zhen Wang, S. Miki, Buller, G.S., Hiskett, P.A., Hiskett, Philip A., Fujiwara, Mikio, M. G. Tanner, Hadfield, R., McCarthy, A., John A O'Connor, Natarajan, Chandra M., Michael G Tanner, O'Connor, J.A., Philip A Hiskett, McCarthy, Aongus, Ghioni, Massimo, Z. Wang, P. D. Townsend, Krichel, Nils J., J. A. O'Connor, Clarke, P.J., Clarke, Patrick J., Sasaki, Masahide   +73 more
core   +1 more source

Free space quantum key distribution over 500 meters using electrically driven quantum dot single-photon sources-a proof of principle experiment [PDF]

, 2014
The authors gratefully acknowledge expert sample preparation by M Emmerling and A Wolf as well as financial support by the German Ministry of Education and Research through the project QPENS and QUASAR.Highly efficient single-photon sources (SPS) can ...
Vest, Gwenaelle, Forchel, Alfred, Heindel, Tobias, Unsleber, Sebastian, Reitzenstein, Stephan, Frick, Stefan, Hoefling, Sven, Rau, Markus, Fischer, Julian, Weinfurter, Harald, Höfling, Sven, Schneider, Christian, Nauerth, Sebastian, Kamp, Martin, Braun, Tristan, Unsleber, S., Sebastian Unsleber, Vest, G., Frick, S., Tobias Heindel, Reitzenstein, S., Harald Weinfurter, Schneider, C., Höfling, S., Christian Schneider, Gwenaelle Vest, Martin Kamp, Sven Höfling, Tristan Braun, Stephan Reitzenstein, Forchel, A., Markus Rau, Weinfurter, H., Braun, T., Fischer, J., Alfred Forchel, Rau, M., Nauerth, S., Julian Fischer, Stefan Frick, Heindel, T., Sebastian Nauerth, Kamp, M.   +42 more
core   +1 more source

Comparison of Discrete Variable and Continuous Variable Quantum Key Distribution Protocols with Phase Noise in the Thermal-Loss Channel [PDF]

Quantum
Discrete-variable (DV) quantum key distribution (QKD) based on single-photon detectors and sources have been successfully deployed for long-range secure key distribution. On the other hand, continuous-variable (CV) quantum key distribution (QKD) based on
Sebastian P. Kish, Patrick J. Gleeson, Angus Walsh, Ping Koy Lam, Syed M. Assad   +4 more
doaj   +1 more source

Prefixed-Threshold Real-Time Selection for Free-Space Sending-or-Not Twin-Field Quantum Key Distribution

Entropy, 2022
As a variant of the twin-field quantum key distribution (TF-QKD), the sending-or-not twin-field quantum key distribution (SNS TF-QKD) is famous for its higher tolerance of misalignment error, in addition to the capacity of surpassing the rate–distance ...
Yang Yu, Rui Xu, Le Wang, Qianping Mao, Shengmei Zhao   +4 more
doaj   +1 more source

Rate Compatible Protocol for Information Reconciliation: An application to QKD [PDF]

, 2010
Information Reconciliation is a mechanism that allows to weed out the discrepancies between two correlated variables. It is an essential component in every key agreement protocol where the key has to be transmitted through a noisy channel.
Daniel Lancho, Martinez Mateo, Jesus, Jesus Martinez-mateo, Jesus Martinez, David Elkouss, Martín Ayuso, Vicente, Elkouss Coronas, David, Vicente Martin, Lancho Lancho, Daniel   +8 more
core   +1 more source

More optimal relativistic quantum key distribution

Scientific Reports, 2022
A great challenge in the field of quantum cryptography is the design and implementation of optimal quantum key distribution (QKD) scheme. An optimal scheme in terms of security is the so-called relativistic quantum key distribution; it ensures the ...
Georgi Bebrov
doaj   +1 more source