Nonlocal Nonlinear Optics in Cold Rydberg Gases
Nonlocal Nonlinear Optics in Cold Rydberg Gases
We present an analytical theory for the nonlinear optical response of a strongly interacting Rydberg gas under conditions of electromagnetically induced transparency. Simple formulas for the third-order optical susceptibility are derived and shown to be in excellent agreement with recent experiments. The obtained expressions reveal strong nonlinearities, which in addition …