Results 71 to 80 of about 10,291,480 (158)
Physical Review XFractional excitations hold immense promise for both fundamental physics and quantum technologies. However, constructing lattice models for their dynamics under gauge fields remains a formidable challenge due to inherent obstructions.
K. B. Yogendra +2 more
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Efficient AB Initio Tight Binding
, 1997 Tight binding is often seen as a middle ground method, lying between accurate ab iniiio methods, and fast empirical potential methods. The challenge is to make tight binding both as fast and as accurate as possible.
Steven David Kenny, Andrew Horsfield
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Data-driven approximations of topological insulator systems
APL Machine LearningA data-driven approach to calculating tight-binding models for discrete coupled-mode systems is presented. In particular, spectral and topological data are used to build an appropriate discrete model that accurately replicates these properties. This work
Justin T. Cole, Michael J. Nameika
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, 2001 Starting from a Lagrangian mean-field theory, a set of time-dependent tight-binding equations is derived to describe dynamically and self-consistently an interacting system of quantum electrons and classical nuclei.
Todorov, Tchavdar
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Tight-binding mechanism in slow light regime [PDF]
, 2011 Date of Conference: 8-11 Aug. 2011In this study, tight-binding formalism is applied to a photonic crystal coupled cavity structure in order to investigate the characteristics of ultra slow light modes. Eigen-mode splitting is observed and resulting group
H. Kurt +7 more
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Tight Binding and Fluorescent Sensing of Oxalate in Water
, 2016 Tight Binding and Fluorescent Sensing of Oxalate in ...
Hae-Jo Kim (1808587) +6 more
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Structure of quaternary Ni-Cu-Fe-Co nanoalloys under thermally induced effect: atomistic simulation
Физико-химические аспекты изучения кластеров, наноструктур и наноматериаловA comprehensive study of equiatomic four-component Ni-Cu-Fe-Co nanoparticles of 5 nm in size was conducted. Simulations were performed using molecular dynamics simulations and the tight-binding potential.
A.Yu.. Kolosov +7 more
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Diffusion studies in UO2 with an improved tight-binding potential: SMTB-QB
Acta MaterialiaThe theoretical modeling of metal oxides represents a fundamental challenge in materials science due to their complex iono-covalent bonding, multiple valence states, and the crucial role of defects in determining their physical properties. Among these materials, uranium dioxide (UO2) stands as both a technologically important compound and a model ...
Roubille, Théo +4 more
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Three-center tight-binding potential model for C and Si
Physical Review B, 2015 A tight-binding potential model which goes beyond the Slater-Koster two-center approximation and includes explicit three-center and crystal field expressions is presented. Using carbon and silicon as examples, we show that various bulk structures, surface reconstructions, and the structures of clusters and liquids of C and Si can be well described by ...
Wen-Cai Lu +4 more
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Optical matrix elements in tight-binding approach of hydrogenated Si nanowires [PDF]
, 2009 The dependence of the imaginary part of the dielectric function on the quantum confinement within two different schemes: intra-atomic and interatomic optical matrix elements are applied and compared.
MIGUEL CRUZ IRISSON +1 more
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