2 papers
quant-ph2025
Conditional squeezing induced by a two-level system: arbitrary-time Magnus coefficients in the quantum Rabi model
Phoenix M. M. Paing, Daniel F. V. James
We present a systematic Magnus expansion treatment of the quantum Rabi model beyond the Rotating Wave Approximation. We show that at the second order of Magnus series, the second-o…
quant-ph2025
Conditions for Time-Independence of N-level Systems under the Rotating Wave Approximation (RWA) and Dipole Selection Rules
Phoenix M. M. Paing, Daniel F. V. James
We analyze the time-dependence of N-level systems under the Rotating Wave Approximation and dipole selection rules. Such systems can be solved straightforwardly if the Hamiltonian…