Results 1 to 10 of about 93,161 (217)

Quasi-planar elemental clusters in pair interactions approximation

open access: yesOpen Physics, 2016
The pair-interactions approximation, when applied to describe elemental clusters, only takes into account bonding between neighboring atoms. According to this approach, isomers of wrapped forms of 2D clusters – nanotubular and fullerene-like structures –
Levan Chkhartishvili
exaly   +2 more sources

Calculation of pair and triplet correlation functions for a Lennard-Jones fluid at ρ*≤1.41 and T*≤25

open access: yesAIP Advances, 2021
On the basis of Monte Carlo simulations, configurations and pair and triplet correlation functions for a Lennard-Jones fluid are reported over a large range of densities and temperatures (0.002 ≤ ρ* ≤ 1.41 and 0.45 ≤ T* ≤ 25, dimensionless).
Matthias Gottschalk
doaj   +1 more source

Discontinuous phase transitions in the q-voter model with generalized anticonformity on random graphs

open access: yesScientific Reports, 2021
We study the binary q-voter model with generalized anticonformity on random Erdős–Rényi graphs. In such a model, two types of social responses, conformity and anticonformity, occur with complementary probabilities and the size of the source of influence $
Angelika Abramiuk-Szurlej   +3 more
doaj   +1 more source

Multiconfiguration Pair-Density Functional Theory for Transition Metal Silicide Bond Dissociation Energies, Bond Lengths, and State Orderings

open access: yesMolecules, 2021
Transition metal silicides are promising materials for improved electronic devices, and this motivates achieving a better understanding of transition metal bonds to silicon.
Meagan S. Oakley   +2 more
doaj   +1 more source

Joint discrete approximation of a pair of analytic functions by periodic zeta-functions

open access: yesMathematical Modelling and Analysis, 2020
In the paper, the problem of simultaneous approximation of a pair of analytic functions by a pair of discrete shifts of the periodic and periodic Hurwitz zeta-function is considered. The above shifts are defined by using the sequence of imaginary parts of
Aidas Balčiūnas   +5 more
doaj   +1 more source

Collective excitations of a charged Fermi superfluid in the BCS-BEC crossover

open access: yesNew Journal of Physics, 2023
We consider collective excitations in the superfluid state of Fermi condensed charged gases. The dispersion and damping of collective excitations at nonzero temperatures are examined, and the coexistence and interaction of different branches of ...
S N Klimin   +3 more
doaj   +1 more source

From deformed Hartree-Fock to the nucleon-pair approximation

open access: yesPhysics Letters B, 2020
The nucleon-pair approximation (NPA) can be a compact alternative to full configuration-interaction (FCI) diagonalization in nuclear shell-model spaces, but selecting good pairs is a long-standing problem.
G.J. Fu, Calvin W. Johnson
doaj   +1 more source

Improved Prediction of Periodicity Using Quartet Approximation in a Lattice Model of Intracellular Calcium Release

open access: yesFrontiers in Applied Mathematics and Statistics, 2019
This study uses a probabilistic cellular automata (PCA) to model the spatial and temporal dynamics of calcium release units (CRUs) within cardiac myocytes.
Robert J. Rovetti
doaj   +1 more source

Higher fidelity simulations of nonlinear Breit–Wheeler pair creation in intense laser pulses

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
When a photon collides with a laser pulse, an electron-positron pair can be produced via the nonlinear Breit–Wheeler process. A simulation framework has been developed to calculate this process, which is based on a ponderomotive approach that includes ...
T. G. Blackburn, B. King
doaj   +1 more source

Pathogen Propagation Model with Superinfection in Vegetatively Propagated Plants on Lattice Space. [PDF]

open access: yesPLoS ONE, 2016
Many clonal plants have two reproductive patterns, seed propagation and vegetative propagation. By vegetative propagation, plants reproduce the genetically identical offspring with a low mortality, because resources are supplied from the other ...
Yuma Sakai, Takenori Takada
doaj   +1 more source

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