Edge critical behaviour of the two-dimensional tri-critical Ising model

摘要: Using previous results from boundary conformal field theory and integrability, a phase diagram is derived for the two-dimensional Ising model at its bulk tri-critical point as function of magnetic spin-coupling constant. A separates phases where spins on are ordered or disordered. In latter range coupling constant, there non-zero critical magnetization singular. former range, temperature lowered, undergoes first-order transition while simultaneously second-order transition.