Results 71 to 80 of about 4,583,269 (264)
On the von Neumann capacity of noisy quantum channels [PDF]
Phys.Rev.A56:3470,1997, 1996 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, for transmitting or storing quantum entanglement.
arxiv +1 more source
Coherence requirements for quantum communication from hybrid circuit dynamics
SciPost Physics, 2023 The coherent superposition of quantum states is an important resource for quantum information processing which distinguishes quantum dynamics and information from their classical counterparts.
Shane P. Kelly, Ulrich Poschinger, Ferdinand Schmidt-Kaler, Matthew P. A. Fisher, Jamir Marino
doaj +1 more source
Temporal information processing induced by quantum noise
Physical Review Research, 2023 Quantum computing has been moving from a theoretical phase to practical one, presenting daunting challenges in implementing physical qubits, which are subjected to noises from the surrounding environment.
Tomoyuki Kubota +5 more
doaj +1 more source
Quantum capacity of an amplitude-damping channel with memory [PDF]
Quantum Information Processing, 2012 We calculate the quantum capacity of an amplitude-damping channel with time-correlated Markov noise, for two channel uses. Our results show that memory of the channel increases its ability to transmit quantum information significantly.
Rabia Jahangir, N. Arshed, A. Toor
semanticscholar +1 more source
On quantum fidelities and channel capacities [PDF]
IEEE Transactions on Information Theory, 2000 13 pages, uses IEEEtran.cls, rawfonts.sty, somedefs.sty.
Barnum, Howard +2 more
openaire +5 more sources
Quantum Reports, 2022 A first quantum revolution has already brought quantum technologies into our everyday life for decades: in fact, electronics and optics are based on the quantum mechanical principles. Today, a second quantum revolution is underway, leveraging the quantum
A. Manzalini, M. Amoretti
semanticscholar +1 more source
ON QUANTUM CAPACITY AND ITS BOUND
Infinite Dimensional Analysis, Quantum Probability and Related Topics, 2003 The quantum capacity of a pure quantum channel and that of classical-quantum-classical channel are discussed in detail based on the fully quantum mechanical mutual entropy. It is proved that the quantum capacity generalizes the so-called Holevo bound.
Masanori Ohya, Igor Volovich
openaire +3 more sources
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
The Capacity of Quantum Neural Networks [PDF]
Conference on Lasers and Electro-Optics, 2020 Quantum neural networks (QNN) are a promising application of near-term quantum computers. We present an information theory of QNN’s expressive power, which we apply to an example optical QNN based on a Gaussian Boson Sampler.
Peter L. McMahon, Logan G. Wright
openaire +3 more sources
Channel covariance, twirling, contraction, and some upper bounds on the quantum capacity [PDF]
Quantum information & computation, 2011 Evaluating the quantum capacity of quantum channels is an important but difficult problem, even for channels of low input and output dimension. Smith and Smolin showed that the quantum capacity of the Clifford-twirl of a qubit amplitude damping channel ...
Yingkai Ouyang
semanticscholar +1 more source