Results 81 to 90 of about 4,417,507 (366)
When does noise increase the quantum capacity? [PDF]
Physical Review Letters, 2011 Superactivation is the property that two channels with zero quantum capacity can be used together to yield a positive capacity. Here we demonstrate that this effect exists for a wide class of inequivalent channels, none of which can simulate each other ...
F. Brandão +2 more
semanticscholar +1 more source
Quantum reading capacity: General definition and bounds [PDF]
, 2019 Quantum reading refers to the task of reading out classical information stored in a read-only memory device. In any such protocol, the transmitter and receiver are in the same physical location, and the goal of such a protocol is to use these devices ...
Das, Siddhartha, Wilde, Mark M.
core +3 more sources
Hybrid Quantum Noise Model to Compute Gaussian Quantum Channel Capacity
IEEE AccessQuantum information processing leverages the principles of quantum mechanics, utilizing qubits, to improve computational and communicative tasks. In this realm, the quantum channel’s capacity is pivotal in determining the efficiency and accuracy ...
Mouli Chakraborty +3 more
doaj +1 more source
Capacity estimation and verification of quantum channels with arbitrarily correlated errors
Nature Communications, 2018 Estimating the quantum capacity allows one to assess the performance of quantum memories, communication channels, repeaters as well as error correction schemes.
Corsin Pfister +4 more
doaj +1 more source
Capacity of Quantum Private Information Retrieval with Colluding Servers [PDF]
International Symposium on Information Theory, 2020 Quantum private information retrieval (QPIR) is a protocol that a user retrieves one of f files from non-communicating n servers by downloading quantum systems without revealing the identity of the target file.
Seunghoan Song, Masahito Hayashi
semanticscholar +1 more source
The capacity of hybrid quantum memory [PDF]
IEEE Transactions on Information Theory, 2003 The general stable quantum memory unit is a hybrid consisting of a classical digit with a quantum digit (qudit) assigned to each classical state. The shape of the memory is the vector of sizes of these qudits, which may differ. We determine when N copies of a quantum memory A embed in N(1+o(1)) copies of another quantum memory B.
openaire +4 more sources
On the von Neumann capacity of noisy quantum channels
, 1997 We discuss the capacity of quantum channels for information transmission and storage. Quantum channels have dual uses: they can be used to transmit known quantum states which code for classical information, and they can be used in a purely quantum manner,
Adami, C., Cerf, N. J.
core +1 more source
Capacities of quantum amplifier channels [PDF]
Physical Review A, 2017 16 pages, 2 figures, accepted for publication in Physical Review ...
Mark M. Wilde, Haoyu Qi
openaire +3 more sources
Superadditivity in trade-off capacities of quantum channels
, 2017 In this article, we investigate the additivity phenomenon in the dynamic capacity of a quantum channel for trading classical communication, quantum communication and entanglement.
Hsieh, Min-Hsiu +3 more
core +1 more source
Advanced Engineering Materials, EarlyView.In this study, the mechanical response of Y‐shaped core sandwich beams under compressive loading is investigated, using deep feed‐forward neural networks (DFNNs) for predictive modeling. The DFNN model accurately captures stress–strain behavior, influenced by design parameters and loading rates.
Ali Khalvandi +4 more
wiley +1 more source