Results 1 to 10 of about 4,287,757 (400)
Entropy of a quantum channel [PDF]
Physical Review Research, 2021 The von Neumann entropy of a quantum state is a central concept in physics and information theory, having a number of compelling physical interpretations.
Gilad Gour, Mark M. Wilde
doaj +8 more sources
Quantum channel measurement with local quantum Bernoulli noises. [PDF]
Sci Rep, 2022 As an important stochastic process, quantum Bernoulli noises has a very important physical background and is an important research object in the field of quantum information.
Han Q, Han Y, Kou Y, Bai N.
europepmc +2 more sources
Probabilistic Teleportation of Arbitrary Two-Qubit Quantum State via Non-Symmetric Quantum Channel. [PDF]
Entropy (Basel), 2018 Quantum teleportation has significant meaning in quantum information. In particular, entangled states can also be used for perfectly teleporting the quantum state with some probability. This is more practical and efficient in practice.
Wang K, Yu XT, Cai XF, Zhang ZC.
europepmc +2 more sources
Quantum Information Transmission Over a Partially Degradable Channel [PDF]
IEEE Access, 2014 We investigate a quantum coding for quantum communication over a partially degradable (PD) quantum channel. For a PD channel, the degraded environment state can be expressed from the channel output state up to a degrading map.
Laszlo Gyongyosi
doaj +3 more sources
Quantumness and Dequantumness Power of Quantum Channels
Entropy, 2022 Focusing on the dynamics of quantumness in ensembles, we propose a framework to qualitatively and quantitatively characterize quantum channels from the perspective of the amount of quantumness in ensembles that a quantum channel can induce or reduce ...
Hongting Song, Nan Li
doaj +3 more sources
Quantum Feedback Channels [PDF]
IEEE Transactions on Information Theory, 2004 In Shannon information theory the capacity of a memoryless communication channel cannot be increased by the use of feedback. In quantum information theory the no-cloning theorem means that noiseless copying and feedback of quantum information cannot be ...
Bowen, Garry
core +4 more sources
Quantum Information Processing, 2021 The reliability of quantum channels for transmitting information is of profound importance from the perspective of quantum information. This naturally leads to the question as how well a quantum state is preserved when subjected to a quantum channel. We propose a measure of quantumness of channels based on non-commutativity of quantum states that is ...
Javid Naikoo +2 more
openaire +4 more sources
Information transmission with continuous variable quantum erasure channels [PDF]
Quantum, 2023 Quantum capacity, as the key figure of merit for a given quantum channel, upper bounds the channel's ability in transmitting quantum information. Identifying different types of channels, evaluating the corresponding quantum capacity, and finding the ...
Changchun Zhong +2 more
doaj +1 more source
Quasirandom quantum channels [PDF]
Quantum, 2020 Mixing (or quasirandom) properties of the natural transition matrix associated to a graph can be quantified by its distance to the complete graph. Different mixing properties correspond to different norms to measure this distance. For dense graphs, two such properties known as spectral expansion and uniformity were shown to be equivalent in seminal ...
Bannink, Tom +3 more
openaire +7 more sources
Order-Stability in Complex Biological, Social, and AI-Systems from Quantum Information Theory
Entropy, 2021 This paper is our attempt, on the basis of physical theory, to bring more clarification on the question “What is life?” formulated in the well-known book of Schrödinger in 1944.
Andrei Khrennikov, Noboru Watanabe
doaj +1 more source