Results 31 to 40 of about 37,717 (266)
Large spatial extension of the zero-energy Yu–Shiba–Rusinov state in a magnetic field
Nature Communications, 2020 Local magnetic moments coupled to superconductors can form subgap Yu-Shiba-Rusinov states. Here the authors show that Shiba states made with an InAs nanowire quantum dot have large spatial extent, which is beneficial for making Shiba chains that are ...
Zoltán Scherübl +10 more
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Quantum histories and correlations in quantum measurements
Quantum Information Processing, 2018 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Marcelo Losada, Roberto Laura
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Computable measure of quantum correlation [PDF]
Quantum Information Processing, 2014 A general state of an $m\otimes n$ system is a classical-quantum state if and only if its associated $A$-correlation matrix (a matrix constructed from the coherence vector of the party $A$, the correlation matrix of the state, and a function of the local coherence vector of the subsystem $B$), has rank no larger than $m-1$.
Seyed Javad Akhtarshenas +3 more
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Certification and applications of quantum nonlocal correlations
JPhys Photonics, 2023 Entanglement and Einstein–Podolsky–Rosen (EPR) steering are nonlocal quantum correlations, which are relevant resources for quantum information protocols. EPR steering, or quantum steering, refers to the correlation where a party might ‘steer’, or modify,
A Elena Piceno-Martínez +2 more
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Spatial Entanglement of Fermions in One-Dimensional Quantum Dots
Entropy, 2021 The time-dependent quantum Monte Carlo method for fermions is introduced and applied in the calculation of the entanglement of electrons in one-dimensional quantum dots with several spin-polarized and spin-compensated electron configurations.
Ivan P. Christov
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Bounding Temporal Quantum Correlations [PDF]
Physical Review Letters, 2013 Sequential measurements on a single particle play an important role in fundamental tests of quantum mechanics. We provide a general method to analyze temporal quantum correlations, which allows us to compute the maximal correlations for sequential measurements in quantum mechanics.
Costantino Budroni +3 more
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Spin chain overlaps and the twisted Yangian
Journal of High Energy Physics, 2020 Using considerations based on the thermodynamical Bethe ansatz as well as the representation theory of twisted Yangians we derive an exact expression for the overlaps between the Bethe eigenstates of the SO(6) spin chain and matrix product states built ...
Marius de Leeuw +4 more
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Hybrid no-signaling-quantum correlations
New Journal of Physics, 2022 Fundamental investigations in non-locality have shown that while the no-signaling principle alone is not sufficient to single out the set of quantum non-local correlations, local quantum mechanics and no-signaling together exactly reproduce the set of ...
Michał Banacki +3 more
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Verifying the Quantumness of Bipartite Correlations [PDF]
Physical Review Letters, 2016 Entanglement is at the heart of most quantum information tasks, and therefore considerable effort has been made to find methods of deciding the entanglement content of a given bipartite quantum state. Here, we prove a fundamental limitation to deciding if an unknown state is entangled or not: we show that any quantum measurement which can answer this ...
Carmeli, Claudio +4 more
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Entanglement in prepare-and-measure scenarios: many questions, a few answers
New Journal of Physics, 2022 Entanglement and quantum communication are paradigmatic resources in quantum information science leading to correlations between systems that have no classical analogue.
Jef Pauwels +3 more
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