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Related Concept Videos

Introduction to MATLAB01:24

Introduction to MATLAB

MATLAB stands for Matrix Laboratory. MathWorks developed MATLAB as a multi-paradigm numerical computing environment and proprietary programming language. It has evolved significantly over the years to become a tool utilized by engineers, scientists, and mathematicians for various tasks, including matrix calculations, developing algorithms, data analysis, and visualization. MATLAB's applications span various industries and disciplines. It's used in image and signal processing, communications,...
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Graphing the Wave Function

Consider the wave equation for a sinusoidal wave moving in the positive x-direction. The wave equation is a function of both position and time. From the wave equation, two different graphs can be plotted.
The Van der Waals Equation01:26

The Van der Waals Equation

The ideal gas law is based on two simplifying assumptions: first, that there are no intermolecular attractions between gas molecules, and second, that the volume occupied by the molecules themselves is negligible compared with the volume of the container. However, these assumptions don't hold up under all conditions - specifically, at high pressures and low temperatures, as gas tends to deviate from ideal gas behavior.The van der Waals equation is an enhanced version of the ideal gas law,...
Van der Waals Equation01:10

Van der Waals Equation

The ideal gas law is an approximation that works well at high temperatures and low pressures. The van der Waals equation of state (named after the Dutch physicist Johannes van der Waals, 1837−1923) improves it by considering two factors.
First, the attractive forces between molecules, which are stronger at higher densities and reduce the pressure, are considered by adding to the pressure a term equal to the square of the molar density multiplied by a positive coefficient a. Second, the volume...
Atomic Orbitals02:44

Atomic Orbitals

An atomic orbital represents the three-dimensional regions in an atom where an electron has the highest probability to reside. The radial distribution function indicates the total probability of finding an electron within the thin shell at a distance r from the nucleus. The atomic orbitals have distinct shapes which are determined by l, the angular momentum quantum number. The orbitals are often drawn with a boundary surface, enclosing densest regions of the cloud.
Plane Potential Flows01:23

Plane Potential Flows

Plane potential flows simplify fluid motion by assuming the fluid to be irrotational and incompressible. These characteristics allow these flows to be described by a velocity potential function, ϕ, representing the flow speed in a given direction, and a stream function, ψ, that visualizes the flow path, both governed by Laplace's equation. These parameters help in estimating flow patterns, velocity distributions, and pressure fields around various hydraulic structures.
Uniform Flow
Uniform flow...

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Updated: May 25, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
10:52

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Published on: April 12, 2019

KSSOLV Toolbox: A MATLAB Graphical User Interface for Plane-Wave Density Functional Theory Calculations.

Liu Yang1, Jinlong Yang2, Wei Hu2

  • 1Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China.

Journal of Chemical Theory and Computation
|May 23, 2026
PubMed
Summary
This summary is machine-generated.

The KSSOLV Toolbox offers a user-friendly MATLAB environment for plane-wave density functional theory (DFT) calculations. It streamlines setup, execution, and analysis, ensuring reproducibility and efficient workflow management for computational materials science.

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Area of Science:

  • Computational Materials Science
  • Quantum Chemistry
  • Solid-State Physics

Background:

  • Plane-wave Kohn-Sham density functional theory (DFT) is crucial for materials simulations.
  • Existing workflows can be complex, hindering accessibility and reproducibility.
  • A unified, graphical environment is needed to simplify DFT calculations.

Purpose of the Study:

  • Introduce the KSSOLV Toolbox, a MATLAB-based graphical environment for plane-wave DFT.
  • Simplify the setup, execution, and analysis of DFT calculations.
  • Enhance reproducibility and project management through integrated workflow organization.

Main Methods:

  • Developed a graphical and workflow-oriented MATLAB environment (KSSOLV Toolbox) built upon the KSSOLV package.
  • Integrated structure import, symmetry analysis, SCF/non-SCF calculations, postprocessing, and visualization.
  • Organized calculation settings, workflows, and results into a single project file for reproducibility.
  • Benchmarked KSSOLV Toolbox against established plane-wave codes (Quantum ESPRESSO, M-SPARC, DFTK.jl, PyPWDFT).

Main Results:

  • KSSOLV Toolbox demonstrates close agreement with Quantum ESPRESSO for total energies and atomic forces.
  • Performance benchmarks show computational behavior for PBE and HSE06 calculations on Si systems.
  • The toolbox provides a unified interface while retaining access to the KSSOLV computational backend.

Conclusions:

  • The KSSOLV Toolbox offers a transparent and accessible platform for plane-wave DFT.
  • It facilitates workflow organization, method development, validation, and rapid prototyping.
  • The toolbox enhances the usability and reproducibility of DFT calculations.