# Recent content by pallab

1. ### The number of states for N identical particles with energy between E and E+dE

the answer is NE^0.5 but my answer is E^0.5N the # of state is Ω=( one particle phase-space volume)^N one particle phase-space volume=integration of dq*integration of dp from space part dq I get V and dp is converted into Energy E variable via E=p^2/2m
2. ### Multipole expansion for the case r'>>r and r>>r'

for the case, r>>r' the higher-order term like 1/r^2 and above that is negligible. so V(r)=cons.*1/r*P0(cos a) but for the case r'>>r will it be V(r)=cons.*1/r'[ summation Pn(cos a')t'^n] where t'=r/r' now if we neglect higher-order term of r/r' then V(r)=cons.*1/r'*P0(cos a') which is...
3. ### A Pauli's spin matrices in higher order

the question that can we express Pauli's 2x2 matrices for spin 1/2 in higher-order matrices, say 3x3, 4x4 arose in my mind.
4. ### A Pauli's spin matrices in higher order

What are the rules to write Pauli's spin matrices in higher-order matrices (especially in 4x4 matrices)
5. ### I Dirac's gamma matrices

what are Dirac's gamma matrices . especially , does it have many forms?
6. ### MATLAB Book for a the beginner

please refer me a good book for the Matlab beginner.
7. ### Book recommendations for second quantization and Jellium model

I have studied quantum mechanics but not the quantum field theory.
8. ### Book recommendations for second quantization and Jellium model

please refer me a good book for the detail step by step study on the second quantization. and also where can I find the jellium model for the metal?
9. ### Good books on Group theory in High Energy physics

please suggest me a good book on the high energy physics where group theory is discussed for the beginner.
10. ### Advanced condensed matter physics book

many electrons theory with creation and annihilation operators.
11. ### Advanced condensed matter physics book

what are the good books on advanced condensed matter physics with detail notation explained?
12. ### Quantum What is a good book for Hartree-Fock theory?

where can I find the thoroughly discussed Hartree and Hartree-Fock method for many electrons system?
13. ### I Difference between δ and ∆ variation?

what is the difference between δ- variation and ∆-variation in variational principle, used in classical mechanics?
14. ### I What is the velocity of light in uniformly rotating frame?

v=2πR/T now for earth T=86400 sec. and R=4.2 light years i.e. (9.46*1015)*4.2 so,v=2.8*1012 m/s , >c

thank you.