Recent content by Karrar

that great, I so happy to your reply it is so clear explanation , thanks alxm

DFT used electron density instead wavefunction, and in same time DFT use Schrodinger equation that use wavefunction. !?? so it still depend on wavefunction of Kohn-Sham and not depend on density only non interaction system wavefunction of still stand please I have many Paradox to...

that's so good descreption cgk and alxm thanks so much . but is HF theory fully neglected the electron correlation , in same time take correlation of average field that created by other electrons , is that Paradox ?

I wonder, what the physical meaning to electron correlation in molecular systems? and. Is there many types of it? Thanks for interest colleagues

THANKS DrDu FOR YOUR INTEREST TO MY ASK SO MUCH

I wonder what is the technique that measure ionization potential for molecular systems experimentally ?

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

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 ?

tell your dad that electron not mass only . it is wave too. so the wave motion is completely different from classical interpreation of body like planets and all theory need to prove ... so you have the prove and he not ... so tell him to give reasonable reason to make new theory for quantum...

thanks so much Mr nicksauce but what the diffrent between D and E

in output result of Gaussian program I find Numbers such as 0.0323424 D-2 what meaning D here

I have two asks first ask : In plot of probablity density of 1s electron of hydrogen atom when r=0 where electron exist ? is inside nucleus?! how happen this second ask what is the reduis of electron ri? and what reduis of nucleos RI is ? in Hamltonain operator i mean the...

I 'm not statisfy DO you statisfy by this talk ?? if electron move what the force the will push it back to avoid fall in nucleus ?? this force never known at this time

quantim mechanic say that reason due to duality property >>> so because electron have wave- like particle make the electron gian spread property but I not statsify,, I thing the same force that make the planet stable in it's orbit ... make the electron stable in it's probablity location ...

Thanks Dale I have been read the paper And know the answer thanks for all