Results 11 to 20 of about 454,681 (325)
Quantum Entanglement of Monochromatic and Non-Monochromatic Photons on a Waveguide Beam Splitter [PDF]
Entropy, 2021 It is well known that the waveguide beam splitter can be used as a source for the quantum entanglement of photons. The analysis of such quantum entanglement is a difficult problem even for monochromatic photons, since the system under study is ...
Dmitry Makarov, Yuliana Tsykareva
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The Effect of Quantum Noise on Multipartite Entanglement from a Cascaded Parametric Amplifier
Photonics, 2023 The tripartite entanglement generated from a cascaded parametric amplifier is always present in the whole gain region in the ideal condition. However, in practical applications, the quantum entanglement is very fragile and easily deteriorated by quantum ...
Hailong Wang +5 more
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QUANTUM ENTANGLEMENT IN THE MULTIVERSE [PDF]
Журнал Экспериментальной и Теоретической Физики, 2014 In this paper it is shown that the quantum state of a multiverse made up of classically disconnected regions of the space-time, whose dynamical evolution is dominated by a homogeneous and isotropic fluid, is given by a squeezed state. These are typical quantum states that have no classical counterpart and, therefore, they allow us to analyze the ...
Salvador Robles-Pérez +1 more
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Exponential Clustering of Bipartite Quantum Entanglement at Arbitrary Temperatures
Physical Review X, 2022 Many inexplicable phenomena in low-temperature many-body physics are a result of macroscopic quantum effects. Such macroscopic quantumness is often evaluated via long-range entanglement, that is, entanglement in the macroscopic length scale.
Tomotaka Kuwahara, Keiji Saito
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Distributing Multipartite Entanglement over Noisy Quantum Networks [PDF]
Quantum, 2023 A quantum internet aims at harnessing networked quantum technologies, namely by distributing bipartite entanglement between distant nodes. However, multipartite entanglement between the nodes may empower the quantum internet for additional or better ...
Luís Bugalho +3 more
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Quantumness and entanglement witnesses [PDF]
Journal of Physics A: Mathematical and Theoretical, 2012 13 pages, 2 ...
Vlatko Vedral +4 more
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Quantum entanglement in helium [PDF]
Journal of Physics B: Atomic, Molecular and Optical Physics, 2011 We compute the entanglement of the ground state and several singlet and triplet excited states of the helium atom using high-quality, state-of-the-art wavefunctions. The behaviour of the entanglement of the helium eigenstates is similar to that observed in some exactly soluble two-electron systems. In particular, the amount of entanglement exhibited by
Rafael J. Yáñez +6 more
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Quantum Information and Entanglement [PDF]
Advances in Mathematical Physics, 2010 1 School of Mathematical Sciences, Capital Normal University, Beijing 100048, China 2 Institute of Applied Mathematics, University of Bonn, 53115 Bonn, Germany 3 Departamento de Fisica Aplicada II, Universidad de Sevilla, 41012 Sevilla, Spain 4 Department of Mathematics, North Carolina State University, Raleigh, NC 27695, USA 5 Statistics and ...
Fei, Shao-Ming +4 more
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Quantum entanglement on boundaries [PDF]
Journal of High Energy Physics, 2013 Quantum entanglement in 3 spatial dimensions is studied in systems with physical boundaries when an entangling surface intersects the boundary. We show that there are universal logarithmic boundary terms in the entanglement R nyi entropy and derive them for different conformal field theories and geometrical configurations. The paper covers such topics
Dmitri V. Fursaev, Dmitri V. Fursaev
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A quantum router architecture for high-fidelity entanglement flows in quantum networks
npj Quantum Information, 2022 The past decade has seen tremendous progress in experimentally realizing the building blocks of quantum repeaters. Repeater architectures with multiplexed quantum memories have been proposed to increase entanglement distribution rates, but an open ...
Yuan Lee +4 more
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