Recent content by tayyaba aftab

If i have a unknown 4*4 matrix A and i have an equation like AQA(dagger)=block diagnol matrix all the matrices are 4*4 how can i evaluate 16 unknowns from these 16 equations using mathematica,as terms involved are much complicated.

i alwyas read word "modulo 2" while reading z2 invariants. i don't know what does that mean so asked about that:frown:

what is modulo associated with z2 invariant?

what is chirality of spin state?

thnx to all:) i actually want to know a pathway which lead me towards understanding topology of topological insulators.and i don't know which path to follow:( thats why i am asking for papers so that they can lead me towards my ultimate goal. i have read http://arxiv.org/abs/1001.1602 i...

thanku yah i read kohomoto paper and got an idea of chern numbers i am physics student so don't have much knowledge of topology and maths but as my work is based on theoretical research i have to do some basic mathematics:( i want papers with more physical insight but mathematics too. and...

what is z2 topological order? @ element 4 can u please recommend something to read? i am unable to get the idea of it:(

dear physics monkey can u please suggest some research paper or book to understand the phenomenon.

why are topological insulators called TOPOLOGICAL insulators? what factor of topology apperas in the phenomenon

question number 6.38 of statistical physics by tobochnik(2004) show that the ground state contribution to the pressure is given by p=kT ln(N +1) explain why p can b regarded as zero and why the pressure of an bose gas for Tless than critical temp is independent of volume? no body...

show that in the thermodynamic limit the bose gas condensate does not contribute to pressure for ideal bose gas in volume V with N particles.and physically explain. how to get it start?and what will b its physicsl explanation? kindly reply soooooooooooon

i have been given a problem for writing s matrix in second order perturbative theory for an interaction hamiltonian with phi 4 and phi 3 contributions. it is also given that our initial state is of 2 particles and final state is of three particles. now in solving that i have to take time...

can anybody please tell me how to calculate gaussian curvature of a circle? and of torus

orignally posted by George Jones "At what level and with respect to what? Classical relativity? Quantum field theory? A nice book is Relativity, Groups, and Particles: Special Relativity and Relativistic Symmetry in Field and Particle Physics by Roman U. Sexl and Helmuth K. Urbantke...

can anybody kindly suggest some link or book for understanding lorentz group and lorentz from scratch.