Results 21 to 30 of about 1,414,712 (339)
“Classical” quantum states [PDF]
Physical Review A, 2009 We show that several classes of mixed quantum states in finite-dimensional Hilbert spaces which can be characterized as being, in some respect, 'most classical' can be described and analyzed in a unified way. Among the states we consider are separable states of distinguishable particles, uncorrelated states of indistinguishable fermions and bosons, as ...
Kuś, Marek, Bengtsson, Ingemar
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Mathematics, 2023 Quantum codes are crucial building blocks of quantum computers. With a self-dual quantum code is attached, canonically, a unique stabilised quantum state. Improving on a previous publication, we show how to determine the coefficients on the basis of kets
Mohd Arif Raza +8 more
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Quantum Hypercube States [PDF]
Physical Review Letters, 2019 Main consists of 5 pages and 5 figures.
Howard, L. A. +6 more
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Mathematics, 2022 The link between classical and quantum theories is discussed in terms of extensional and intensional viewpoints. The paper aims to bring evidence that classical and quantum probabilities are related by intensionalization, which means that by abandoning ...
Miloš Milovanović, Nicoletta Saulig
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Discorrelated quantum states [PDF]
Scientific Reports, 2017 AbstractThe statistical properties of photons are fundamental to investigating quantum mechanical phenomena using light. In multiphoton, two-mode systems, correlations may exist between outcomes of measurements made on each mode which exhibit useful properties.
Evan Meyer-Scott +4 more
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The European Physical Journal D, 2006 We study quantum state estimation problems where the reference system with respect to which the state is measured should itself be treated quantum mechanically. In this situation, the difference between the system and the reference tends to fade. We investigate how the overlap between two pure quantum states can be optimally estimated, in several ...
Gisin, N., Iblisdir, S.
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New Journal of Physics, 2021 We extend the theory of quantum state engineering (QSE) to the open quantum systems which simultaneously suffer time-dependent decoherence and time-independent decoherence.
Qi-Cheng Wu +4 more
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Quantum-state decorrelation [PDF]
Physical Review A, 2008 We address the general problem of removing correlations from quantum states while preserving local quantum information as much as possible. We provide a complete solution in the case of two qubits, by evaluating the minimum amount of noise that is necessary to decorrelate covariant sets of bipartite states.
D'Ariano G M +3 more
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The Operational Choi–Jamiołkowski Isomorphism
Entropy, 2020 In this article, I use an operational formulation of the Choi–Jamiołkowski isomorphism to explore an approach to quantum mechanics in which the state is not the fundamental object.
Emily Adlam
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Atom-optically synthetic gauge fields for a noninteracting Bose gas
Light: Science & Applications, 2022 A two-leg ladder with tunable gauge fields is achieved by one-dimensional synthetic momentum-state lattice of a noninteracting Bose gas.
Yuqing Li +9 more
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