All Questions
Tagged with algorithms software
7
questions
8
votes
1
answer
173
views
Github for Physicists
I am wondering if there is a platform to which researchers share or publish the code they used in their research. I noticed that many researchers explain their algorithm and math and present the ...
0
votes
0
answers
55
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Fluid simulations on spherical coordinate grid: How to handle $\theta=0$ axis?
I am working on a fluid simulation code written in spherical coords. Whoever wrote the original didn't do a great job with the boundary conditions at $\theta=0$ and $\theta=\pi$ axes. My task is to "...
- 789
1
vote
0
answers
91
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Numerically Solving EM problems. Book covering: ABS, PML, Near field calcul., LU fact, BicGstab, Pardiso etc
I looking for a book (or two) covering a range of topics:
numerical implementation of
boundary conditions (PEC, PMC, ABS);
perfect matching layer;
LU factorisation;
numerical solvers and when to use ...
4
votes
0
answers
350
views
$N$-body gravity simulator: why does energy conservation break down when introducing an adaptive timestep?
I am playing with an N-body gravity simulator using the velocity-verlet algorithm. In the actual simulation I normalize everything so that it is nicely behaved numerically, but I'll express things in ...
- 439
4
votes
3
answers
294
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High Energy Physics Algorithms in GEANT4
I have been learning to use the GEANT4 software and I came across the following statement in the Users Guide, and I couldn't help being curious as to why this was? I'm primarily a mathematician, so I ...
- 43
1
vote
0
answers
107
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Computational complexity - Quantum system [closed]
I have created a genetic algorithm to solve for the ground state of an arbitrary Hermitian matrix. it does this by working out fitness values which i have defined as -E = -$<\psi|\hat{H}|\psi>$. ...
- 11
5
votes
0
answers
133
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Textbooks on algorithms for the perturbative calculation of High energy physics
For the perturbative calculation of High energy physics, I have known some packages such as FeynArts, FeynCalc, MadGraph, CompHEP, GiNaC, and so on. But I am wondering whether there exists a textbook ...