Results 51 to 60 of about 6,032,211 (303)
Temperature Correlations of Quantum Spins [PDF]
Physical Review Letters, 1993 We consider isotropic XY model in the transverse magnetic field on the one dimensional lattice. Another name of the model in Heisenberg XXO model of spin 1/2.We solved long standing problem of evaluation of temperature correlations. We first represent correlation function in the model, by means of completely integrable differential equation.
Its, A. R. +3 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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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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THE SET OF QUANTUM CORRELATIONS IS NOT CLOSED [PDF]
Forum of Mathematics, Pi, 2017 We construct a linear system nonlocal game which can be played perfectly using a limit of finite-dimensional quantum strategies, but which cannot be played perfectly on any finite-dimensional Hilbert space, or even with any tensor-product strategy.
William Slofstra
semanticscholar +1 more source
Security of quantum key distribution with intensity correlations [PDF]
Quantum, 2021 The decoy-state method in quantum key distribution (QKD) is a popular technique to approximately achieve the performance of ideal single-photon sources by means of simpler and practical laser sources.
Víctor Zapatero +3 more
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Quantum correlation via quantum coherence [PDF]
Quantum Information Processing, 2014 20 pages, 1 figure. To appear Quant.
Yu, Chang-Shui +2 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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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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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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Quantum correlations of light mediated by gravity [PDF]
Physical Review A, 2019 We propose to explore the quantum nature of gravity using the correlation of light between two optomechanical cavities, and the quantumness of the correlation is witnessed by squeezing.
H. Miao +3 more
semanticscholar +1 more source