Results 31 to 40 of about 10,676,880 (208)

Security Analysis of Sending or Not-Sending Twin-Field Quantum Key Distribution with Weak Randomness

Entropy, 2022
Sending-or-not sending twin-field quantum key distribution (SNS TF-QKD) has the advantage of tolerating large amounts of misalignment errors, and its key rate can exceed the linear bound of repeaterless quantum key distribution.
Xiao-Lei Jiang, Yang Wang, Yi-Fei Lu, Jia-Ji Li, Chun Zhou, Wan-Su Bao   +5 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   +14 more
core   +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

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

Quantum Key Distribution (QKD) Experimental Assessment [PDF]

, 2023
Security of communication is an essential requirement for sensitive and critical information. The encryption protocols are currently used for protecting the data transmissions against possible eavesdroppers. However they are already under attack and will
LEWIS Adam, BONAVITACOLA Fausto, CERUTTI Isabella   +2 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