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