This comprehensive paragraph by Dieter Forster1 ” Physics is a field that thrives on analogies. We can understand, partially at least, superfluid Helium on the basis of concepts borroed from sup...
Google Colab
Mount (unmount) Google Drive from google.colab import drive drive.mount('/content/drive') drive.mount('/drive', force_remount=True)
Bell Inequality
The Bell Inequalities: Identifying What Is Testable and What Is Not
The Matrix Exponential
If a matrix A is diagonalizable, then there exists an invertible P so that $A = PDP^{−1}$, where D is a diagonal matrix of eigenvalues of A, and P is a matrix having eigenvectors of A as its column...
Gaussian
Memory Requirements for Parallel Calculations %Mem=128MW Memory required by each multiprocessor. %NProcShared=2 Use two shared memory processors on e...
Story: no one knows what entropy really is
In the case of Shannon’s measure the naming was not accidental. In 1961 one of us (Tribus) asked Shannon what he had thought about when he had finally confirmed his famous measure. Shannon replied:...
Lars Onsager (1903–1976)
兩位飄浮在耶魯校園的寂寞天才(下) 陽春白雪又何妨 by 高崇文
Transport equations
### Onsager’s regression hypothesis states that fluctuations evolve according to the laws that govern macroscopic variations. Boltzmann equation the derivation of Euler, Navier–Stokes, Burnett, a...
ORCA
ORCA ORCA is an ab initio, DFT, and semi-empirical SCF-MO package developed by Frank Neese et al. at the Max Planck Institut für Kohlenforschung. Orbital and density plots If you run a calculation...
Ab initio molecular dynamics (AIMD)
AIMD ORCA Molecular Dynamics Module Here is a nice example given by Dr. Martin Brehm. Also the metadynamics on top of AIMD.
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