Results 41 to 50 of about 123,258 (197)

Entanglement fidelity and measure of entanglement

Quantum Information Processing, 2020
The notion of entanglement fidelity is to measure entanglement preservation through quantum channels. Nevertheless, the amount of entanglement present in a state of a quantum system at any time is measured by quantities known as measures of entanglement.
openaire   +2 more sources

Entanglement Renormalization [PDF]

Physical Review Letters, 2007
4 pages, 4 figures, updated ...
openaire   +6 more sources

Entanglement wedge reconstruction and entanglement of purification [PDF]

The European Physical Journal C, 2018
In the holographic correspondence, subregion duality posits that knowledge of the mixed state of a finite spacelike region of the boundary theory allows full reconstruction of a specific region of the bulk, known as the entanglement wedge. This statement has been proven for local bulk operators.
Ricardo Espíndola, Alberto Güijosa, Juan F. Pedraza   +2 more
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Multipartite entanglement of billions of motional atoms heralded by single photon

npj Quantum Information, 2021
Quantum theory does not prevent entanglement from being created and observed in macroscopic physical systems, in reality however, the accessible scale of entanglement is still very limited due to decoherence effects.
Hang Li, Jian-Peng Dou, Xiao-Ling Pang, Chao-Ni Zhang, Zeng-Quan Yan, Tian-Huai Yang, Jun Gao, Jia-Ming Li, Xian-Min Jin   +8 more
doaj   +1 more source

Anyonic entanglement and topological entanglement entropy [PDF]

Annals of Physics, 2017
We study the properties of entanglement in two-dimensional topologically ordered phases of matter. Such phases support anyons, quasiparticles with exotic exchange statistics. The emergent nonlocal state spaces of anyonic systems admit a particular form of entanglement that does not exist in conventional quantum mechanical systems.
Bonderson, Parsa, Knapp, Christina, Patel, Kaushal   +2 more
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Generating distributed entanglement from electron currents [PDF]

, 2014
This work is partially supported by a Royal Society University Research FellowshipSeveral recent experiments have demonstrated the viability of a passive device that can generate spin-entangled currents in two separate leads.
Lovett, Brendon W., Kolli, Avinash, Jefferson, John H., Ping, Yuting   +3 more
core   +1 more source

Challenging unverified assumptions in causal claims: Do gas stoves increase risk of pediatric asthma?

Global Epidemiology
The use of unverified models for risk estimates and policy recommendations can be highly misleading, as their predictions may not reflect real-world health impacts.
Louis Anthony Cox, Jr.
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Clarifying causality and information flows between time series: Particulate air pollution, temperature, and elderly mortality

Global Epidemiology
Exposure-response associations between fine particulate matter (PM2.5) and mortality have been extensively studied but potential confounding by daily minimum and maximum temperatures in the weeks preceding death has not been carefully investigated.
Louis Anthony Cox, Jr
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Entanglement polygon inequality in qubit systems

New Journal of Physics, 2018
We prove a set of tight entanglement inequalities for arbitrary N -qubit pure states. By focusing on all bi-partite marginal entanglements between each single qubit and its remaining partners, we show that the inequalities provide an upper bound for each
Xiao-Feng Qian, Miguel A Alonso, J H Eberly   +2 more
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An AI assistant to help review and improve causal reasoning in epidemiological documents

Global Epidemiology
Drawing sound causal inferences from observational data is often challenging for both authors and reviewers. This paper discusses the design and application of an Artificial Intelligence Causal Research Assistant (AIA) that seeks to help authors improve ...
Louis Anthony Cox, Jr.
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