Results 41 to 50 of about 345,856 (326)

Entanglement entropy and entanglement spectrum of the Kitaev model

open access: yes, 2010
In this paper, we obtain an exact formula for the entanglement entropy of the ground state and all excited states of the Kitaev model. Remarkably, the entanglement entropy can be expressed in a simple separable form S=S_G+S_F, with S_F the entanglement ...
A. Renyi, Hong Yao, Xiao-Liang Qi
core   +1 more source

Evolutional Entanglement in Nonequilibrium Processes [PDF]

open access: yes, 2003
Entanglement in nonequilibrium systems is considered. A general definition for entanglement measure is introduced, which can be applied for characterizing the level of entanglement produced by arbitrary operators.
Courteille P. W.   +6 more
core   +2 more sources

An AI assistant to help review and improve causal reasoning in epidemiological documents

open access: yesGlobal 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.
doaj   +1 more source

Entanglement production in Quantized Chaotic Systems

open access: yes, 2005
Quantum chaos is a subject whose major goal is to identify and to investigate different quantum signatures of classical chaos. Here we study entanglement production in coupled chaotic systems as a possible quantum indicator of classical chaos.
A J Scott   +30 more
core   +1 more source

Entanglement thermodynamics [PDF]

open access: yesJournal of High Energy Physics, 2013
17 pages, no figures, typos fixed, journal ...
Alishahiha, Mohsen   +2 more
openaire   +3 more sources

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

open access: yesGlobal 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.
doaj   +1 more source

Scaling of entanglement between separated blocks in spin chains at criticality

open access: yes, 2009
We compute the entanglement between separated blocks in certain spin models showing that at criticality this entanglement is a function of the ratio of the separation to the length of the blocks and can be written as a product of a power law and an ...
H. Wichterich   +4 more
core   +1 more source

Clarifying causality and information flows between time series: Particulate air pollution, temperature, and elderly mortality

open access: yesGlobal 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
doaj   +1 more source

Entanglement Availability Differentiation Service for the Quantum Internet

open access: yes, 2018
A fundamental concept of the quantum Internet is quantum entanglement. In a quantum Internet scenario where the legal users of the network have different priority levels or where a differentiation of entanglement availability between the users is a ...
Gyongyosi, Laszlo, Imre, Sandor
core   +1 more source

Brownian entanglement [PDF]

open access: yesPhysical Review A, 2005
We show that for two classical brownian particles there exists an analog of continuous-variable quantum entanglement: The common probability distribution of the two coordinates and the corresponding coarse-grained velocities cannot be prepared via mixing of any factorized distributions referring to the two particles in separate.
Allahverdyan, A.E.   +2 more
openaire   +4 more sources

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