  The quantum Rabi model accepts analytical solutions in the so-called
degenerate qubit and relativistic regimes with discrete and continuous
spectrum, in that order.We show that solutions in the laboratory frame are the
superposition of even and odd displaced number states, in the former, and
infinitely squeezed coherent states, in the latter, of the boson field
correlated to the internal states of the qubit. We propose a single parameter
model that interpolates between these discrete and continuous spectrum regimes
to study the spectral statistics for first and second neighbor differences
before the so-called spectral collapse. We find two central first neighbor
differences that interweave and fluctuate keeping a constant second neighbor
separation.
