Results 91 to 100 of about 399,748 (340)

Quantum channel construction with circuit quantum electrodynamics [PDF]

Physical Review B, 2017
16 pages, 8 ...
Shen, Chao, Noh, Kyungjoo, Albert, Victor V., Krastanov, Stefan, Devoret, Michel H., Schoelkopf, Robert J., Girvin, S. M., Jiang, Liang   +7 more
openaire   +2 more sources

Single Pair of Weyl Points Evolve From Spin Group‐Protected Nodal Line in Half‐Metallic Ferromagnet V3S4

Advanced Functional Materials, EarlyView.
A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian, Yao Zhang, Xiaowei Sheng, Xiuxian Yang, Gang Zhang, Junfeng Gao, Xiaotian Wang   +6 more
wiley   +1 more source

The n-shot classical capacity of the quantum erasure channel

Journal of Physics Communications
We compute the n -shot classical capacity of the quantum erasure channel, providing upper bounds and almost-matching lower bounds for it, the latter achievable via large-minimum-distance classical linear codes for any n .
Matteo Rosati
doaj   +1 more source

Approximating Decoherence Processes for the Design and Simulation of Quantum Error Correction Codes on Classical Computers

IEEE Access, 2020
Quantum information is prone to suffer from errors caused by the so-called decoherence, which describes the loss in coherence of quantum states associated to their interactions with the surrounding environment.
Josu Etxezarreta Martinez, Patricio Fuentes, Pedro M. Crespo, J. Garcia-Frias   +3 more
doaj   +1 more source

Optimisation of the routing protocol for quantum wireless Ad Hoc network

IET Quantum Communication, 2022
This study addresses the optimisation of on‐demand routing protocols for quantum wireless Ad Hoc network. The study improves the route discovery protocol by proposing a ‘reverse synchronisation method’, which means after the route request is completed ...
Ling Zhang, Qin Liu
doaj   +1 more source

Entanglement required in achieving entanglement-assisted channel capacities

, 2002
Entanglement shared between the two ends of a quantum communication channel has been shown to be a useful resource in increasing both the quantum and classical capacities for these channels.
A. Ekert, A.M. Steane, A.R. Calderbank, C. Adami, C.H. Bennett, C.H. Bennett, C.H. Bennett, C.H. Bennett, C.H. Bennett, C.H. Bennett, D. Bruß, D. Gottesman, D.A. Lidar, D.P. DiVincenzo, E. Knill, E. Knill, E.M. Rains, G. Bowen, Garry Bowen, H. Barnum, H.-K. Lo, N.J. Cerf, P. Shor, P. Zanardi, P. Zanardi, P.W. Shor, R. Cleve, R. Laflamme   +27 more
core   +1 more source

Secure quantum signatures using insecure quantum channels [PDF]

Physical Review A, 2016
Digital signatures are widely used in modern communication to guarantee authenticity and transferability of messages, The security of currently used classical schemes relies on computational assumptions. We present a quantum signature scheme that does not require trusted quantum channels.
Amiri, Ryan, Wallden, Petros, Kent, Adrian, Andersson, Erika   +3 more
openaire   +4 more sources

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Quantum interference channels [PDF]

2011 49th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2011
10 pages, 2 figures, submitted to the 2011 Allerton Conference on Communication, Control, and Computing; v3 has a proof for a two-sender quantum simultaneous decoder and as a result, we get the capacity for channels with strong ...
Savov, Ivan, Fawzi, Omar, Wilde, Mark M., Sen, Pranab, Hayden, Patrick   +4 more
openaire   +2 more sources

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

Advanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann, Christoph Findler, Michael Olney‐Fraser, Lev Kazak, Fedor Jelezko   +4 more
wiley   +1 more source