Results 31 to 40 of about 304,874 (299)

Genuine Multipartite Entanglement in the $3$-Photon Decay of Positronium [PDF]

open access: yes, 2017
The electron-positron annihilation into two photons is a standard technology in medicine to observe e.g. metabolic processes in human bodies. A new tomograph will provide the possibility to observe not only direct $e^+ e^-$ annihilations but also the $3$
Hiesmayr, B. C., Moskal, P.
core   +3 more sources

Characterizing long-range entanglement in a mixed state through an emergent order on the entangling surface

open access: yesPhysical Review Research, 2023
Topologically-ordered phases of matter at nonzero temperature are conjectured to exhibit universal patterns of long-range entanglement, which can be detected using the entanglement negativity, a mixed-state entanglement measure.
Tsung-Cheng Lu, Sagar Vijay
doaj   +1 more source

Superadditivity of the Classical Capacity with Limited Entanglement Assistance [PDF]

open access: yes, 2017
Finding the optimal encoding strategies can be challenging for communication using quantum channels, as classical and quantum capacities may be superadditive.
Shor, Peter W.   +2 more
core   +2 more sources

Typical entanglement [PDF]

open access: yesThe European Physical Journal Plus, 2013
15 pages, 4 ...
Deelan Cunden, Fabio   +3 more
openaire   +3 more sources

A useful way to obtain the central charge of entanglement Hamiltonian -- Nested entanglement entropy [PDF]

open access: yes, 2013
In this paper, we review how to obtain the central charge of a critical entanglement Hamiltonian through the nested entanglement entropy which was first introduced in [J. Lou et al. PRB 84, 245128 (2011)].
Tanaka, Shu
core   +3 more sources

Selective entanglement breaking [PDF]

open access: yes, 2006
We discuss the cases where local decoherence selectively degrades one type of entanglement more than other types. A typical case is called state ordering change, in which two input states with different amounts of entanglement undergoes a local ...
J. Eisert   +6 more
core   +2 more sources

Thermal entanglement and teleportation in a two-qubit Heisenberg chain with Dzyaloshinski-Moriya anisotropic antisymmetric interaction [PDF]

open access: yes, 2007
Thermal entanglement of a two-qubit Heisenberg chain in presence of the Dzyaloshinski-Moriya (DM) anisotropic antisymmetric interaction and entanglement teleportation when using two independent Heisenberg chains as quantum channel are investigated. It is
Guangcan Guo   +5 more
core   +2 more sources

Calculating preventable risk fractions for exposure-reducing interventions

open access: yesGlobal Epidemiology
How can causal models be used to quantify the fractions of risk associated with environmental and occupational exposures that would be prevented by reducing exposures by different amounts? This paper provides a constructive answer.
Louis Anthony Cox, Jr.
doaj   +1 more source

Entanglement contour

open access: yes, 2014
In the context of characterizing the structure of quantum entanglement in many-body systems, we introduce the entanglement contour, a tool to identify which real-space degrees of freedom contribute, and how much, to the entanglement of a region A with ...
Chen, Yangang, Vidal, Guifre
core   +1 more source

Distributed entanglement [PDF]

open access: yesPhysical Review A, 2000
13 pages LaTeX; references added, derivation of Eq.
Coffman, Valerie   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy