Test of an Optimised Exact-Diagonalization Approach for Trapped Fermionic Mixtures
Sign Up to like & getrecommendations! Published in 2020 at "Few-Body Systems"
DOI: 10.1007/s00601-020-01547-3
Abstract: We probe the convergence of the configuration interaction (CI) approach for harmonically trapped one-dimensional Fermi–Fermi mixtures. Existing scientific papers that apply the CI approach to study such systems typically use harmonic oscillator eigenfunctions with fixed… read more here.
Keywords: exact diagonalization; test optimised; fermionic mixtures; approach ... See more keywords
Formation of Magnetization Plateaus in Rare Earth Tetraborides: Exact Diagonalization and Quantum Monte Carlo Studies
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Superconductivity and Novel Magnetism"
DOI: 10.1007/s10948-020-05595-y
Abstract: A relatively simple model based on the coexistence of spin and electron subsystems is proposed for a description of magnetization processes in metallic rare earth tetraborides. The model takes into account the Ising interaction between… read more here.
Keywords: exact diagonalization; rare earth; quantum monte; interaction ... See more keywords
Low-energy excitations in helium-like dimer within an exact diagonalization approach
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DOI: 10.1063/1.5055858
Abstract: The non-relativistic quantum-mechanical problem on bound states of four interacting spinless electrons moving in the Coulomb field of two attractive point centers with Z 0 = 2 spaced at fixed distance R0 (4He2 dimer within… read more here.
Keywords: exact diagonalization; ground state; spin; dimer ... See more keywords
Exact diagonalization solver for extended dynamical mean-field theory
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DOI: 10.1103/physrevb.96.235149
Abstract: We present an efficient exact diagonalization scheme for the extended dynamical mean-field theory and apply it to the extended Hubbard model on the square lattice with nonlocal charge-charge interactions. Our solver reproduces the phase diagram… read more here.
Keywords: exact diagonalization; dynamical mean; mean field; field theory ... See more keywords