Superradiance transition in a system with a single qubit and a single oscillator
Superradiance transition in a system with a single qubit and a single oscillator
We consider the phase-transition-like behaviour in the Rabi model containing a single two-level system, or qubit, and a single harmonic oscillator. The system experiences a sudden transition from an uncorrelated state to an increasingly correlated one as the qubit-oscillator coupling strength is varied and increased past a critical point. This …