Results 71 to 80 of about 3,875,923 (367)

Quantum Markov channels for qubits [PDF]

open access: yesPhysical Review A, 2003
18 pages, 4 ...
Daffer, Sonja   +2 more
openaire   +3 more sources

A General Method for Selecting Quantum Channel for Bidirectional Controlled State Teleportation and Other Schemes of Controlled Quantum Communication

open access: yes, 2015
Recently, a large number of protocols for bidirectional controlled state teleportation (BCST) have been proposed using $n$-qubit entangled states ($n\in\{5,6,7\}$) as quantum channel.
Pathak, Anirban   +2 more
core   +1 more source

Quantum Capacities of Bosonic Channels [PDF]

open access: yes, 2006
We investigate the capacity of bosonic quantum channels for the transmission of quantum information. Achievable rates are determined from measurable moments of the channel by showing that every channel can asymptotically simulate a Gaussian channel which
A. S. Holevo   +5 more
core   +2 more sources

Behavior of Quantum Correlations under Local Noise

open access: yes, 2011
We characterize the behavior of quantum correlations under the influence of local noisy channels. Intuition suggests that such noise should be detrimental for quantumness. When considering qubit systems, we show for which channel this is indeed the case:
Bruß, Dagmar   +2 more
core   +1 more source

Asymptotics of quantum channels: conserved quantities, an adiabatic limit, and matrix product states [PDF]

open access: yesQuantum, 2018
This work derives an analytical formula for the asymptotic state---the quantum state resulting from an infinite number of applications of a general quantum channel on some initial state. For channels admitting multiple fixed or rotating points, conserved
Victor V. Albert
semanticscholar   +1 more source

Learning a quantum channel from its steady-state

open access: yesNew Journal of Physics
We present a scalable method for learning local quantum channels using local expectation values measured on a single state—their steady state. Our method is inspired by the algorithms for learning local Hamiltonians from their ground states.
Yigal Ilin, Itai Arad
doaj   +1 more source

Detecting quantum capacities of continuous-variable quantum channels

open access: yesPhysical Review Research, 2022
Quantum communication channels and quantum memories are the fundamental building blocks of large-scale quantum communication networks. Estimating their capacity to transmit and store quantum information is crucial in order to assess the performance of ...
Ya-Dong Wu, Giulio Chiribella
doaj   +1 more source

Gauge invariant information concerning quantum channels [PDF]

open access: yesQuantum, 2017
Motivated by the gate set tomography we study quantum channels from the perspective of information which is invariant with respect to the gauge realized through similarity of matrices representing channel superoperators.
Lukasz Rudnicki   +2 more
semanticscholar   +1 more source

Quantum channel capacities: Multiparty communication [PDF]

open access: yesPhysical Review A, 2006
1 ...
Demianowicz, Maciej, Horodecki, Pawel
openaire   +2 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy