Thanks, Tone. MyTrinh
> On Tue, 2009-08-04 at 11:11 -0700, vtmtrinh at caltech.edu wrote: >> Dear Lorenzo, >> >> Thank you for your help. I am still confused (I may be dump :-)). >> Yes, I agree that wavefunction at Gamma is real and thus will have a >> sign >> with it. However, |psi|^2 is a positive quantity. If we multiply |psi|^2 >> by sign(psi) (which is segno in the code), then |psi|^2*sign(psi) will >> have a sign of sign(psi). Why we want to have a sign with |psi|^2? > > Perhaps, because you may then plot: sign(psi)\sqrt(|psi|^2) ... > > Regards, Tone > > -- > Anton Kokalj > J. Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia > (tel: +386-1-477-3523 // fax:+386-1-477-3822) > > Please, if possible, avoid sending me Word or PowerPoint attachments. > See: http://www.gnu.org/philosophy/no-word-attachments.html > > _______________________________________________ > Pw_forum mailing list > Pw_forum at pwscf.org > http://www.democritos.it/mailman/listinfo/pw_forum >
