نتایج جستجو برای: strongly correlatedsystem wannier function

تعداد نتایج: 1399746  

Journal: :Jetp Letters 2022

Quantum transport has been simulated in hexagonal semiconductor lattices of antidots with a period 80 nm and short-range disorder. Wannier diagrams, i.e., DoS ( n , B ) maps the density states, where is electron magnetic field strength, have calculated for several potential modulation amplitudes comparable to or much larger than Fermi energy. Deep dips states form rays positive, zero, negative ...

Journal: :Physical review research 2021

We systematically construct flatbands (FB) for tight-binding models on simple Bravais lattices in space dimension $d \geq 2$ the presence of a static uniform DC field. Commensurate field directions yield irreducible Wannier-Stark (WS) bands perpendicular - 1$ with $d$-dimensional eigenfunctions. The turn into dispersionless absence nearest neighbor hoppings between lattice sites any direction t...

2009
Hyun Jung Park Tiffani L. Williams

Phylogenetics is concerned with inferring the genealogical relationships between a group of organisms (or taxa), and this relationship is usually expressed as an evolutionary tree. However, inferring the phylogenetic tree is not a trivial task since it is impossible to know the true evolutionary history for a set of organisms. As a result, most phylogenetic analyses rely on effective heuristics...

2002
Arnold Beckmann

Height restricted resolution (proofs or refutations) is a natural restriction of resolution where the height of the corresponding proof tree is bounded. Height restricted resolution does not distinguish between treeand sequence-like proofs. We show that polylogarithmic-height resolution is strongly connected to the bounded arithmetic theory S 2(α). We separate polylogarithmic-height resolution ...

Journal: :Des. Codes Cryptography 2016
Zhengchun Zhou Nian Li Cuiling Fan Tor Helleseth

Linear codes with few weights have applications in secrete sharing, authentication codes, association schemes, and strongly regular graphs. In this paper, several classes of p-ary linear codes with two or three weights are constructed from quadratic Bent functions over the finite field Fp, where p is an odd prime. They include some earlier linear codes as special cases. The weight distributions...

Journal: :Des. Codes Cryptography 2017
Chunming Tang Can Xiang Keqin Feng

Linear codes with few weights have been an interesting subject of study for many years, as these codes have applications in secrete sharing, authentication codes, association schemes, and strongly regular graphs. In this paper, linear codes with a few weights are constructed from inhomogeneous quadratic functions over the finite field GF(p), where p is an odd prime. They include some earlier li...

Journal: :international journal of nonlinear analysis and applications 2011
a. esi

in this paper we introduce strongly $left[  v_{2},lambda_{2},m,pright]-$summable double vsequence spaces via orlicz function and examine someproperties of the resulting these spaces. also we give natural relationshipbetween these spaces and $s_{lambda_{2}}-$statistical convergence.

Journal: :Physical review 2021

We obtain an analytical expression for the linewidth of $1s$ exciton as a function temperature in transition metal dichalcogenides. The total linewidth, temperature, is dominated by three contributions: (i) radiative decay (essentially independent), (ii) phonon-induced intravalley scattering, and (iii) intervalley scattering. Our approach uses variational Ansatz to solve Wannier equation, allow...

Journal: :Journal of Physics: Conference Series 2009

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