Although it does not involve physics, this sentence can already silence everyone, and naturally includes physical people.
In fact, this sentence also involves a physics knowledge point.
Guess what
Joke parsing is an extremely detrimental act of jokesThe best way to make people laugh is when you suddenly figure out what the joke is about one day after a long time, and then you suddenly burst into laughter. But here is an addition for the completeness of the answer. If you're even more silent after reading it, it's okay,This is also normal。
DFT is also a discrete Fourier transform (DiScreteFourierTransform,DFT) and density functional theory (DFT), while the KS equation is the basic equation of density functional theory.
At the same time, quantum chemical calculations[2]The basic equation for molecular orbital theory is Hartree-Fock (HFEquation, while HF at the same time by hydrofluoric acid can be expressed.
So,This coincidence is skillfully used here, and one can't help but laugh』。
The process from the Schrödinger equation to the HF equation requires three approximations, namely the "non-relativistic approximation", the "adiabatic approximation" and the "orbital approximation". For the purposes of our derivation, the so-called "adiabatic approximation" is actually a "Bonn-Oppenheimer approximation" (Born-Orppenheimer approximation)", that is, the following formula "The motion of the nucleus and the motion of the electrons are considered separately'sThe nucleus does not move approximately』
At the same time, BO is also a "Bayesian optimization (BayesianOrptimization).
So,This coincidence is skillfully used here, and one can't help but laugh』。
FEPThey are in the alchemy free energy simulation『Free energy perturbation method(FreeAndnergyPerturbation,FEP)』And 『氟化乙烯丙烯(Fluorinated ethylene propylene, FEP)』Abbreviation.
So,This coincidence is skillfully used here, and one can't help but laugh』。
In thermodynamics, three fundamental laws were first discovered, but then the "zero law of thermodynamics" was established.
The numbering sequence here parodies this process of discovery.It makes people laugh』。
The original meme image is from the Inception Meme Generator, and the related formula is as follows
\varepsilon_i\psi_i(\vec{r})&= \left(-\frac{2}{0}\nabla^0+U(\vec{r})+\int\frac{\rho(\vec{r}_0)}{r_{0}}\mathrm{d}\vec{r}_0+U_{\mathrm{XC}}[\rho(\vec{r})]\right)\psi_i(\vec{r}) \\\\ U_{\mathrm{XC}}[\rho(\vec{r})] &= \frac{\delta[\varepsilon_{\mathrm{XC}}[\rho(\vec{r})]]}{\delta(\rho(\vec{r}))}\rho(\vec{r})+\varepsilon_{\mathrm{XC}}[\rho(\vec{r})]