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visits member for 2 years, 1 month
seen Nov 15 '12 at 16:08

Jun
27
awarded  Teacher
Oct
28
answered What is Fermi surface and why is this concept so useful in metals research?
Sep
24
comment Connection between first and second quantization
but you did not write it as a polynomial. you wrote a product of creation operators acting on a vacuum state, then put equality sign and then usual sum over antisymmetric products of one particle states. yes, you have your anticomm. relation but you dont have a sum...at least i dont see it.
Sep
22
asked Connection between first and second quantization
Sep
1
comment four boson quantum system contact interaction
Ill stop doing that.I can list about 12 state kets and their energies for non interacting system and write the matrix in a diagonal form with those energies as eigenvalues and state kets as eigenvectors...but what good will that do? How can I form states of interacting system? This is my first many body problem so...what is exact diagonalization?
Sep
1
comment four boson quantum system contact interaction
I have no idea how to begin solving this problem. Am I suppose to form some sort of diagonal matrix? What are the state kets?
Sep
1
comment four boson quantum system contact interaction
oops, wrong key...so, yes...it is a homework problem and no, i am not asking you to just give me those plots.
Sep
1
comment four boson quantum system contact interaction
This is Marko, in response to one and only answer so far..
Sep
1
awarded  Student
Sep
1
asked four boson quantum system contact interaction