Universal Scaling and Critical Exponents of the Anisotropic Quantum Rabi Model
Universal Scaling and Critical Exponents of the Anisotropic Quantum Rabi Model
We investigate first- and second-order quantum phase transitions of the anisotropic quantum Rabi model, in which the rotating- and counter-rotating terms are allowed to have different coupling strength. The model interpolates between two known limits with distinct universal properties. Through a combination of analytic and numerical approaches we extract the …