Understanding a Complex Algorithm: Seeking Insight and Clarity

Karrar
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from my reading to DFT I constructed this algorithm

V ex...>\rho ...\varphi...SCF...new\varphi>>>new\rho ...energy

what your opinion in this algorithm ... is lost to some thing ?

and i need to some one tell me is density come from wave function or from V-external ?
 
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I don't see how that constitutes an algorithm (feel free to prove me wrong by writing an implementation).

Charitably interpreting that as a general statement to the effect of "You can use an SCF-like procedure to calculate the density", then that's true. It's also what everyone's been doing for the last 40 years, solving the Kohn-Sham equations. The difficulty in developing the Roothaan-Hall and Kohn-Sham equations wasn't finding an iterative procedure to solve them. They already knew how to solve eigenvalue problems. The difficulty was reformulating the problem into a generalized eigenvalue problem. You're approaching the problem backwards.
 
I construct this scheme for understanding DFT not for treatment something ... so I have Problem with density equation ... what the equation that include the Vex with electron density ... this my Problem ... thanks alxm for interest
 
I read Hanbury Brown and Twiss's experiment is using one beam but split into two to test their correlation. It said the traditional correlation test were using two beams........ This confused me, sorry. All the correlation tests I learnt such as Stern-Gerlash are using one beam? (Sorry if I am wrong) I was also told traditional interferometers are concerning about amplitude but Hanbury Brown and Twiss were concerning about intensity? Isn't the square of amplitude is the intensity? Please...
I am not sure if this belongs in the biology section, but it appears more of a quantum physics question. Mike Wiest, Associate Professor of Neuroscience at Wellesley College in the US. In 2024 he published the results of an experiment on anaesthesia which purported to point to a role of quantum processes in consciousness; here is a popular exposition: https://neurosciencenews.com/quantum-process-consciousness-27624/ As my expertise in neuroscience doesn't reach up to an ant's ear...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
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