Results 41 to 50 of about 30,970 (226)
Dynamical Mean-Field Theory Simulations with the Adaptive Sampling Configuration Interaction Method [PDF]
, 2019 In the pursuit of accurate descriptions of strongly correlated quantum many-body systems, dynamical mean-field theory (DMFT) has been an invaluable tool for elucidating the spectral properties and quantum phases of both phenomenological models and ab ...
Mejuto-Zaera, Carlos +2 more
core +2 more sources
Lifshitz Transition in Correlated Topological Semimetals
Advanced Science, EarlyView.Theoretical calculations reveal that in YPtBi and GdPtBi, strong electronic correlations shift topological Dirac nodes away from the Fermi level by forming large hole pockets. This effect is sensitive to temperature and arises from interactions among 4d or 4f electrons, offering insights into Fermi surface engineering in quantum materials.
Byungkyun Kang +4 more
wiley +1 more source
Nonlocal correlations and spectral properties of the Falicov-Kimball model
, 2016 We derive an analytical expression for the local two-particle vertex of the Falicov-Kimball model, including its dependence on all three frequencies, the full vertex and all reducible vertices.
Held, K., Ribic, T., Rohringer, G.
core +2 more sources
A DFT+nonhomogeneous DMFT approach for finite systems [PDF]
Journal of Physics: Condensed Matter, 2015 For reliable and efficient inclusion of electron-electron correlation effects in nanosystems we propose a combined density-functional-theory/nonhomogeneous dynamical-mean-field-theory (DFT + DMFT) approach which employs an approximate Iterative Perturbative Theory (IPT) impurity solver.
Kabir, Alamgir +2 more
openaire +4 more sources
Twist Engineering of Hybrid 2D van der Waals‐Transition Metal Oxide Membranes
Advanced Physics Research, EarlyView.The integration of transition metal oxide membranes with 2D van der Waals materials offers exciting opportunities to study new interfacial phenomena. These interactions can create complex moiré patterns that change the materials' properties. Understanding these interactions, influenced by symmetry and distortion, poses significant challenges and ...
Mar Garcia Hernandez +4 more
wiley +1 more source
Journal of Family Medicine and Primary Care, 2021 Context: Given the uneven distribution of dental caries, there is an exigent need for a database of dental caries and its spatial distribution for better planning and efficient delivery of health promotional and preventive programs.
Pragya Pandey +3 more
doaj +1 more source
, 2004 We give a detailed description of a recently proposed first principles approach to the electronic structure of strongly correlated materials. The method combines the GW approximation with dynamical mean field theory.
Aryasetiawan, Ferdi +2 more
core +2 more sources
Comparing $GW$+DMFT and LDA+DMFT for the testbed material SrVO$_3$
, 2012 We have implemented the $GW$+dynamical mean field theory (DMFT) approach in the Vienna ab initio simulation package. Employing the interaction values obtained from the locally unscreened random phase approximation (RPA), we compare $GW$+DMFT and LDA+DMFT against each other and against experiment for SrVO$_3$.
Taranto, Ciro +6 more
openaire +2 more sources
Minimum hardware requirements for hybrid quantum–classical DMFT
Quantum Science and Technology, 2020 Abstract We numerically emulate noisy intermediate-scale quantum (NISQ) devices and determine the minimal hardware requirements for two-site hybrid quantum–classical dynamical mean-field theory (DMFT). We develop a circuit recompilation algorithm which significantly reduces the number of quantum gates of the DMFT algorithm and find that ...
B Jaderberg +4 more
openaire +3 more sources
Clinical and Experimental Dental Research, EarlyView.Abstract Background Family plays a significant role in children's dental and oral health (DOH) elements, such as children's DOH knowledge and practice, the development of children's dental fear and anxiety (DFA), children's dental visits, and children's DOH status.
Wisnu Fadila +5 more
wiley +1 more source