Results 11 to 20 of about 9,200,709 (207)

Extracting electronic many-body correlations from local measurements with artificial neural networks [PDF]

open access: yesSciPost Phys. Core 6, 030 (2023), 2022
The characterization of many-body correlations provides a powerful tool for analyzing correlated quantum materials. However, experimental extraction of quantum entanglement in correlated electronic systems remains an open problem in practice. In particular, the correlation entropy quantifies the strength of quantum correlations in interacting ...
arxiv   +1 more source

Reveal quantum correlation in complementary bases [PDF]

open access: yesSci. Rep. 4, 4036 (2014), 2013
An essential feature of genuine quantum correlation is the simultaneous existence of correlation in complementary bases. We reveal this feature of quantum correlation by defining measures based on invariance under a basis change. For a bipartite quantum state, the classical correlation is the maximal correlation present in a certain optimum basis ...
arxiv   +1 more source

Correlated Binomial Models and Correlation Structures [PDF]

open access: yesJ.Phys.A:Math.Gen.39(2006)15365-15378, 2006
We discuss a general method to construct correlated binomial distributions by imposing several consistent relations on the joint probability function. We obtain self-consistency relations for the conditional correlations and conditional probabilities.
arxiv   +1 more source

Kondo Effect with Weyl Semimetal Fermi Arcs [PDF]

open access: yesPhys. Rev. B 97, 045148 (2018), 2017
We investigate the Kondo effect of the Fermi arcs in a time-reversal-invariant Weyl semimetal with the variational method. To show the consequence brought out by the nontrivial spin texture, we calculate the spatial spin-spin correlation functions. The correlation functions exhibit high anisotropy.
arxiv   +1 more source

New Integrable Models of Strongly Correlated Particles with Correlated Hopping [PDF]

open access: yesPhys. Rev. B, Vol. 59, 3373 (1999), 1999
The exact solution is obtained for the eigenvalues and eigenvectors for two models of strongly correlated particles with single-particle correlated and uncorrelated pair hoppings. The asymptotic behavior of correlation functions are analysed in different regions, where the models exhibit different physical behavior.
arxiv   +1 more source

Significance and properties of internucleon correlation functions [PDF]

open access: yesNucl.Phys.A818:188-207,2009, 2008
We show that a nuclear Hamiltonian and a set of internucleon correlation functions is in a one-to-one correspondence. The correlation functions for $s$-shell nuclei interacting via the two-nucleon interaction of AV8$^\prime$ type are calculated to exhibit the importance of tensor correlations as well as short-range central correlation.
arxiv   +1 more source

Online Correlation Clustering [PDF]

open access: yes, 2010
We study the online clustering problem where data items arrive in an online fashion. The algorithm maintains a clustering of data items into similarity classes.
Mathieu, Claire   +2 more
core   +4 more sources

Population and species neighbor identity impact trait–trait relationships and plant performance

open access: yesPopulation Ecology, EarlyView.
We evaluated how populations and species identity influence plant performance and trait outcomes in mixtures, and assessed trait variation among populations of two forb species native to the western United States (Dieteria canescens and Heterotheca villosa) following three interaction treatments (single‐population monoculture, two‐population mixture ...
Alicia J. Foxx   +2 more
wiley   +1 more source

On relationships between Chatterjee's and Spearman's correlation coefficients [PDF]

open access: yesarXiv, 2023
In his seminal work, Chatterjee (2021) introduced a novel correlation measure which is distribution-free, asymptotically normal, and consistent against all alternatives. In this paper, we study the probabilistic relationships between Chatterjee's correlation and the widely used Spearman's correlation.
arxiv  

The Correlation Between Providing Complementary Food and Breast-Feeding with the Growth and Development of Children Under the Age of Five Years Old (6-24 Months) [PDF]

open access: yes, 2015
A toddler is a group on the stage of human development that is vulnerable to the risk affecting their health specifically about their growth and development.
Fitriyani, P. (Poppy)   +2 more
core  

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