Results 1 to 10 of about 39,505 (312)
LINKS AND QUANTUM ENTANGLEMENT [PDF]
Proceedings of the Conference in Honour of Murray Gell-Mann's 80th Birthday, 2010 We discuss the analogy between topological entanglement and quantum entanglement, particularly for tripartite quantum systems. We illustrate our approach by first discussing two clearly (topologically) inequivalent systems of three-ring links: The Borromean rings, in which the removal of any one link leaves the remaining two non-linked (or, by analogy,
Solomon, A. I., Ho, C. -L.
openaire +2 more sources
Cost of Quantum Entanglement Simplified [PDF]
Physical Review Letters, 2020 Quantum entanglement is a key physical resource in quantum information processing that allows for performing basic quantum tasks such as teleportation and quantum key distribution, which are impossible in the classical world. Ever since the rise of quantum information theory, it has been an open problem to quantify entanglement in an information ...
Xin Wang, Mark M. Wilde
openaire +3 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 +1 more source
Genuine multipartite entanglement measures based on multi-party teleportation capability
Scientific Reports, 2023 Quantifying entanglement is vital to understand entanglement as a resource in quantum information processing, and many entanglement measures have been suggested for this purpose.
Minjin Choi, Eunok Bae, Soojoon Lee
doaj +1 more source
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 ...
Robles-Pérez, Salvador +1 more
openaire +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 +1 more source
Power of Quantum Entanglement [PDF]
, 2002 Quantum entanglement is arguably the most inherently quantum feature of quantum information, computation and communication — a feature that is at heart of quantum physics. Quantum entanglement is also increasingly often considered as being behind new and surprising power quantum computations and communications exhibit — comparing to the classical ...
Jozef Gruska +2 more
openaire +1 more source
QUANTUMNESS OF CORRELATIONS AND ENTANGLEMENT [PDF]
International Journal of Quantum Information, 2011 Generalized measurement schemes on one part of bipartite states, which would leave the set of all separable states insensitive are explored here to understand quantumness of correlations in a more general perspective. This is done by employing linear maps associated with generalized projective measurements.
Usha Devi, A.R. +2 more
openaire +4 more sources
Quantum impurity entanglement [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2007 62 pages, 27 figures, JSTAT ...
Sørensen, Erik S. +3 more
openaire +2 more sources
Quantum capacities for entanglement networks [PDF]
2016 IEEE International Symposium on Information Theory (ISIT), 2016 We discuss quantum capacities for two types of entanglement networks: $\mathcal{Q}$ for the quantum repeater network with free classical communication, and $\mathcal{R}$ for the tensor network as the rank of the linear operation represented by the tensor network.
Shawn X. Cui +3 more
openaire +2 more sources