Results 61 to 70 of about 457,528 (172)

Optimal quantum network decongestion strategies

Scientific Reports, 2023
This study clarifies the problem of decongestion in quantum networks, with a specific focus on the crucial task of entanglement distribution. Entangled particles are a valuable resource in quantum networks, as they are used for most quantum protocols. As
Luca Perju Verzotti, Bogdan-Călin Ciobanu, Pantelimon George Popescu   +2 more
doaj   +1 more source

Quantum entanglement of photons on free electrons

Results in Physics, 2023
The quantum entanglement of photons is one of the interesting and important manifestations of the quantum world, which is already being used in quantum technologies.
D.N. Makarov
doaj  

Classical entanglement [PDF]

arXiv, 2001
Classical systems can be entangled. Entanglement is defined by coincidence correlations. Quantum entanglement experiments can be mimicked by a mechanical system with a single conserved variable and 77.8% conditional efficiency. Experiments are replicated for four particle entanglement swapping and GHZ entanglement.
arxiv  

Experimental Activation of Bound Entanglement [PDF]

, 2011
Entanglement is one of the essential resources in quantum information and communication technology (QICT). The entanglement thus far explored and applied to QICT has been pure and distillable entanglement. Yet there is another type of entanglement, called 'bound entanglement', which is not distillable by local operations and classical communication ...
arxiv   +1 more source

Mixed state entanglement classification using artificial neural networks

New Journal of Physics, 2021
Reliable methods for the classification and quantification of quantum entanglement are fundamental to understanding its exploitation in quantum technologies.
Cillian Harney, Mauro Paternostro, Stefano Pirandola   +2 more
doaj   +1 more source

Exploring the Percolation Phenomena in Quantum Networks

Mathematics
Quantum entanglement as a non-local correlation between particles is critical to the transmission of quantum information in quantum networks (QNs); the key challenge lies in establishing long-distance entanglement transmission between distant targets ...
Chuanxin Wang, Xinqi Hu, Gaogao Dong
doaj   +1 more source

Quantifying Unknown Multiqubit Entanglement Using Machine Learning

Entropy
Entanglement plays a pivotal role in numerous quantum applications, and as technology progresses, entanglement systems continue to expand. However, quantifying entanglement is a complex problem, particularly for multipartite quantum states. The currently
Yukun Wang, Shaoxuan Wang, Jincheng Xing, Yuxuan Du, Xingyao Wu   +4 more
doaj   +1 more source

Direct and Indirect Coupling Entanglements in an Optomechanical Cavity Coupled to a Rydberg Superatom

Photonics
We investigate steady-state entanglement in a hybrid optomechanical cavity coupled to a Rydberg atomic ensemble confined within a single blockade region. The ensemble behaves as one superatom due to the rigid dipole blockade effect.
Dong Yan, Feifan Ren, Lei Huang, Yilongyue Guo, Jing Wang, Kaihui Gu, Hanxiao Zhang   +6 more
doaj   +1 more source

Floating Entanglement Witness Measure and Genetic Algorithm [PDF]

arXiv, 2007
In this paper based on the notion of entanglement witness, a new measure of entanglement called floating entanglement witness measure is introduced which satisfies some of the usual properties of a good entanglement measure. By exploiting genetic algorithm, we introduce a classical algorithm that computes floating entanglement witness measure.
arxiv  

Entanglement and quantum fluctuations [PDF]

arXiv, 2003
We discuss maximum entangled states of quantum systems in terms of quantum fluctuations of all essential measurements responsible for manifestation of entanglement. Namely, we consider maximum entanglement as a property of states, for which quantum fluctuations come to their extreme.
arxiv