Results 81 to 90 of about 3,875,923 (367)
Constructing a virtual two-qubit gate by sampling single-qubit operations
New Journal of Physics, 2021 We show a certain kind of non-local operations can be simulated by sampling a set of local operations with a quasi-probability distribution when the task of a quantum circuit is to evaluate an expectation value of observables.
Kosuke Mitarai, Keisuke Fujii
doaj +1 more source
Can non-private channels transmit quantum information?
, 2009 We study the power of quantum channels with little or no capacity for private communication. Because privacy is a necessary condition for quantum communication, one might expect that such channels would be of little use for transmitting quantum states ...
A. S. Holevo +4 more
core +1 more source
Quantifying the resource content of quantum channels: An operational approach [PDF]
Physical Review A, 2018 We propose a general method to operationally quantify the resourcefulness of quantum channels via channel discrimination, an important information processing task.
Lu Li, Kaifeng Bu, Zi-Wen Liu
semanticscholar +1 more source
Teleportation-Induced Correlated Quantum Channels [PDF]
Physical Review Letters, 2010 4 pages, 2 ...
CARUSO, FILIPPO +2 more
openaire +8 more sources
Advanced Engineering Materials, EarlyView.An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu +8 more
wiley +1 more source
Optimal measurement preserving qubit channels
New Journal of Physics, 2020 We consider the problem of discriminating qubit states that are sent over a quantum channel and derive a necessary and sufficient condition for an optimal measurement to be preserved by the channel.
Spiros Kechrimparis, Joonwoo Bae
doaj +1 more source
An Infinite Sequence of Additive Channels: the Classical Capacity of Cloning Channels
, 2013 We introduce an infinite sequence of quantum channels for which the Holevo capacity is additive. The channel series is closely related to the quantum channels arising from universal quantum cloning machines. The additivity proof is motivated by a special
Bradler, Kamil
core +1 more source
Strong converse rates for quantum communication [PDF]
, 2015 We revisit a fundamental open problem in quantum information theory, namely whether it is possible to transmit quantum information at a rate exceeding the channel capacity if we allow for a non-vanishing probability of decoding error.
Tomamichel, Marco +2 more
core +4 more sources
Tuning quantum channels to maximize polarization entanglement for telecom photon pairs [PDF]
npj Quantum Information, 2018 Quantum networks entangle remote nodes by distributing quantum states, which inevitably suffer from decoherence while traversing quantum channels. Pertinent decoherence mechanisms govern the reach, quality, and rate of distributed entanglement.
Daniel E. Jones, B. Kirby, M. Brodsky
semanticscholar +1 more source
Interference of Quantum Channels [PDF]
Physical Review Letters, 2003 4 pages, 5 figures, REVTeX 4, typographical corrections and added ...
openaire +4 more sources