How to experimentally measure the number 5 of the SO(5) theory?
arXiv:cond-mat/0005334 · doi:10.1016/S0921-4534(00)00398-1
Abstract
According to Wilson's theory of critical phenomena, critical exponents are universal functions of , the dimension of space, and , the dimension of the symmetry group. SO(5) theory of antiferromagnetism and superconductivity predicts a bicritical point where and intersect. By measuring critical exponents close to the bicritical point, and knowing that , one can experimentally measure the number 5 of the SO(5) theory.
Invited talk at the M2S conference in Houston