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Reviews of Modern Physics, 2007 All our former experience with application of quantum theory seems to say: {\it what is predicted by quantum formalism must occur in laboratory}. But the essence of quantum formalism - entanglement, recognized by Einstein, Podolsky, Rosen and Schr ...
Horodecki, Karol +3 more
core +6 more sources
Quantum Entanglement: Separability, Measure, Fidelity of Teleportation, and Distillation [PDF]
Advances in Mathematical Physics, 2010 Quantum entanglement plays crucial roles in quantum information processing. Quantum entangled states have become the key ingredient in the rapidly expanding field of quantum ...
Ming Li, Shao-Ming Fei, Xianqing Li-Jost
doaj +5 more sources
Quantum entanglement recognition [PDF]
Physical Review Research, 2021 Entanglement constitutes a key characteristic feature of quantum matter. Its detection, however, still faces major challenges. In this paper, we formulate a framework for probing entanglement based on machine learning techniques. The central element is a
Jun Yong Khoo, Markus Heyl
doaj +5 more sources
Quantum Entanglement of Monochromatic and Non-Monochromatic Photons on a Waveguide Beam Splitter. [PDF]
Entropy (Basel), 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 ...
Makarov D, Tsykareva Y.
europepmc +2 more sources
Comparing Quantum Entanglement and Topological Entanglement [PDF]
New Journal of Physics, 2002 This paper discusses relationships between topological entanglement and quantum entanglement. Specifically, we propose that for this comparison it is fundamental to view topological entanglements such as braids as "entanglement operators" and to associate to them unitary operators that are capable of creating quantum entanglement.
Samuel J. Lomonaco, Louis H. Kauffman
arxiv +5 more sources
General polygamy inequality of multi-party quantum entanglement [PDF]
Physical Review A 85, 062302 (2012), 2012 Using entanglement of assistance, we establish a general polygamy inequality of multi-party entanglement in arbitrary dimensional quantum systems. For multi-party closed quantum systems, we relate our result with the monogamy of entanglement to show that the entropy of entanglement is an universal entanglement measure that bounds both monogamy and ...
C. Bennett, Jeong San Kim, T. Laustsen
arxiv +3 more sources
Computing quantum discord is NP-complete
New Journal of Physics, 2014 We study the computational complexity of quantum discord (a measure of quantum correlation beyond entanglement), and prove that computing quantum discord is NP-complete.
Yichen Huang
doaj +2 more sources
Entanglement 25 Years after Quantum Teleportation: Testing Joint Measurements in Quantum Networks
Entropy, 2019 Twenty-five years after the invention of quantum teleportation, the concept of entanglement gained enormous popularity. This is especially nice to those who remember that entanglement was not even taught at universities until the 1990s.
Nicolas Gisin
doaj +4 more sources
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
doaj +3 more sources
Experimental localisation of quantum entanglement through monitored classical mediator [PDF]
Quantum, 2021 Quantum entanglement is a form of correlation between quantum particles that cannot be increased via local operations and classical communication.
Soham Pal +4 more
doaj +3 more sources