Recent content by peter308

Thanks For Mr.Simon's reply. In my case the line is a perfect straight line. I can derive a general form for the Irreducible representations of the vibration modes for any number of atomic chains ( with atom numbers N). I want to find out is there a way to transform the irreducible...

Dear All: For a line structure(say a very long atomic chain) and a closed loop structure( connect the head and tail of this atomic chain). Does there exists a transformation between these two structures? For example if we want to study the vibration mode of these two cases. If we already know...

Does there exist a transformation between a line and a closed loop ? Dear All: For a line structure(say a very long atomic chain) and a closed loop structure( connect the head and tail of this atomic chain). Does there exists a transformation between these two structures? For example if we...

how to integrate this equation? ∫∫e^-x^2 e^-x'^2 / |x-x'| dx^3 dx'^3 lower limit is 0 and upper limit is inf for x and x' the result is an error function. But I would like to know the details of the process of integration. some one suggest me to change the variable to x+x'=u...

Dear all: I need to calculate the density of states of electrons from metallic clusters. I ran a DFT program and output the mulliken population analysis datas, such as the following: (I show only part of the data) ATOM # 1 ORBITAL ALPHA OCCUPATION 5s...

thx a lot,dude thumbs up!

thx a lot, cheers

recently,i am having a report on the issue concerning the quantum interpretation,somehow,i choosed to read the transactional interpretation by prof cramer.i have complete about 60% of the studying,however,the deadline is coming closer(march 13th).as a result,the alternatives interpretations...

we know that there's position eigenket,P eigenket and energy eigenket but is there something called the time operator,and the time eigenket or this is only a terminology that doesn't even exist,it's just my illusion! thanks gratefully

thx a lot.very helpful tools u guys suggest!

how u guys find the pdf,doc,or even the textbook docs over the internet?through ftp?newsgroup?p2p?forum?webpages? recently,i am preparing a report for Copenhagen interpretation , hidden variables,and bell's inequality.i am tired using google,i wonder if there's a better approach for finding...

how u guys find the pdf,doc,or even the textbook docs over the internet?through ftp?newsgroup?p2p?forum?webpages? recently,i am preparing a report for Copenhagen interpretation , hidden variables,and bell's inequality.i am tired using google,i wonder if there's a better approach for finding...

the two electrons are fermions(electons),and they interact through coulomb force. i got this problem from my prof,saying this work could have some connections to entanglement and quantum dots.i wonder if we could throw the spin part away,just concentrate on the space part first!or have we...

the way u solve the problem will encounter some difficulties,one is the bondary conditions(infinite well!),as u transfrom the coordiates, the boundary will transfrom,either .and i believe this will result in the conditon that u can't separate your variables!by the way,i am grateful y give me...

as title, the electron's interaction is coulomb force. 1.is it unsolvable?(exact solution) 2.will computer simulation be the only way to work it out? thanks a lot,dude