We present a systematic method to implement perturbative Hamiltonian diagonalization based on the time-dependent Schrieffer-Wolff transformation. Applying our strong parametric interactions we show how, even in dispersive regime, full Rabi model physics is essential describe dressed spectrum. Our results unveil several qualitatively different results, including realization of large energy-level...

In this paper, the capacity of a multiuser Multiple Input Multiple Output (MIMO) system employing the block diagonalization broadcasting scheme in presence of spatial correlation and mutual coupling is investigated. It is shown by computer simulations that, in general, the presence of spatial correlation decreases the capacity of a multiuser MIMO system. However, for some particular antenna ele...