Recent content by its_blitz!

But it doesn't work. X with anti-diagonal 1's doesn't give the transpose, it gives a kind of mirroring of the matrix. I'm also looking for an X such that X^-1AX=A^T. Shouldn't there be a method for generically finding a similarity transformation that gives you a matrix B, whether it's the...

In an interactive field theory we can compute the amplitude of a particle propagating from y to x by evaluating perturbatively expressions of the form <GS|o(x)o(y)|GS> where GS stands for ground state and o are the field operators. This can be extended to higher number of operators for more...

Ed Witten is the kind of genius other incredibly intelligent theorists and mathematicians will look up to in awe, that's how scarily smart the guy is. He clearly knows his stuff when it comes to QFT, string theory and any related mathematics. As someone taking graduate courses in QFT and...