The familiar Rabi model, comprising a two-level system coupled to a quantum harmonic
oscillator, continues to produce rich and surprising physics when the coupling strength …

Squeezed states of light are a set of nonclassical states in which the quantum fluctuations of
one quadrature component are reduced below the standard quantum limit. With less noise …

The time-dependent behavior of a two-level system interacting with a quantum oscillator
system is analyzed in the case of a coupling larger than both the energy separation between …

Beyond the rotating-wave approximation, the dynamics of a quantum oscillator interacting
strongly and off-resonantly with a two-level system exhibit beatings, whose period equals …

The Rabi Hamiltonian is studied in the dispersive regime and ultra-strong coupling. We
employ a recent unitary transformation to obtain not only the approximate Hamiltonian and …

Theoretically, the presence of a metallic nanoparticle enhances the intermolecular energy
transfer. We calculate this enhancement factor with a modal approach pertaining analytical …

The enhancement factor of intermolecular energy transfer in the vicinity of a plasmonic
spherical nanoparticle is calculated analytically. In contrast to other treatments, the present …

Usually, fluorescence of a two-level system increases with the coupling strength to an
electromagnetic field. However, we show numerically that the fluorescence is quenched in …

The term" quantum electromechanics" describes a system consisting of a nanofabricated
mechanical resonator coupled to a superconducting device called a charge qubit (quantum …

Nanoscopic systems contain, in essence, a finite number of atoms. Description of
nanosystems with first principles methods of quantum mechanics is still a cumbersome …