Fermi surface topology of the two-dimensional Kondo lattice model: Dynamical cluster approximation approach [PDF]
, 2010 We report the results of extensive dynamical cluster approximation calculations, based on a quantum Monte Carlo solver, for the two-dimensional Kondo lattice model.
L. Martin, M. Bercx, F. Assaad
semanticscholar +2 more sources
The GW/BSE Method in Magnetic Fields
Frontiers in Chemistry, 2021 The GW approximation and the Bethe–Salpeter equation have been implemented into the Turbomole program package for computations of molecular systems in a strong, finite magnetic field.
Christof Holzer +3 more
doaj +1 more source
Unifying Sparsest Cut, Cluster Deletion, and Modularity Clustering Objectives with Correlation Clustering [PDF]
, 2018 Graph clustering, or community detection, is the task of identifying groups of closely related objects in a large network. In this paper we introduce a new community-detection framework called LambdaCC that is based on a specially weighted version of ...
Gleich, David +2 more
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Dynamical cluster approximation within an augmented plane wave framework: Spectral properties of SrVO3 [PDF]
, 2011 We present a combination of local density approximation (LDA) with the dynamical cluster approximation (LDA+DCA) in the framework of the full-potential linear augmented plane-wave method, and compare our LDA+DCA results for SrVO$_3$ to LDA with the ...
Hunpyo Lee +5 more
semanticscholar +1 more source
Dynamic properties of NH_3CH_2COOH·H_2PO_3 ferroelectric
Condensed Matter Physics, 2018 Using a modified pseudospin model of NH_3CH_2COOH·H_2PO_3 ferroelectric taking into account the piezoelectric coupling with strains ε_i, ε_4, ε_5 and ε_6 within Glauber method in two-particle claster approximation, we have calculated components of ...
I.R. Zachek +3 more
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Hydrostatic Pressure Effect on Relaxation of Quasi-One-Dimensional GPI Ferroelectric
Фізика і хімія твердого тіла, 2018 Dynamic model of deformed quasi-one-dimensional ferroelectrics with hydrogen bonds is proposed. On the basis of this model within the two-particle cluster approximation with taking into account short-range and long-range interactions and strains εi and ...
I. R. Zachek +2 more
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INFLUENCE OF DFT-FUNCTIONAL AND BASIS SET OF FUNCTIONS ON CALCULATION RESULTS OF THE STRUCTURAL AND ENERGY PROPERTIES OF Ag2 MOLECULAR CLUSTER [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2015 The paper deals with the impactassessmentforthe exchange-correlation functionalsand Slater-type basis sets on the properties of molecular cluster Ag2carried outwithin the framework of the density functional theory.
M. V. Stolyarchuk, A. I. Sidorov
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Quasi-Deterministic Processes with Monotonic Trajectories and Unsupervised Machine Learning
Mathematics, 2021 This paper aims to consider approximation-estimation tests for decision-making by machine-learning methods, and integral-estimation tests are defined, which is a generalization for the continuous case.
Andrey V. Orekhov
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Towards analytical approaches to the dynamical-cluster approximation
, 2009 I introduce several simplified schemes for the approximation of the self-consistency condition of the dynamical cluster approximation. The applicability of the schemes is tested numerically using the fluctuation-exchange approximation as a cluster solver
A. Georges +15 more
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Ground state and excitation spectra of a strongly correlated lattice by the coupled cluster method [PDF]
, 2012 We apply Coupled Cluster Method to a strongly correlated lattice and develop the Spectral Coupled Cluster equations by finding an approximation to the resolvent operator, that gives the spectral response for an certain class of probe operators.
Bartlett +15 more
core +1 more source