The striking nonlinear effects exhibited by cavity QED systems make them a powerful tool in
modern condensed matter and atomic physics. A recently discovered example is the …

We propose a fast scheme to generate Schrödinger cat states in a superconducting
resonator using a continuously driven qubit without resorting to the dispersive regime, two …

In this paper, we introduce some distinct classes of entangled cat states associated to
generalized displaced Fock states. For this purpose, we use the formalism of nonlinear …

We investigate the dynamics of a qubit-oscillator system under the influence of a linear
sweep of system parameters. We consider two main cases. In the first case, we consider …

A qubit driven by two incommensurate frequencies can mediate a quantized average energy
current in the adiabatic limit. We show that nonadiabatic processes result in reversals of the …

Time-dependent light-matter interactions are a widespread means by which to describe
controllable experimental operations. They can be viewed as an approximation in which a …

Periodic driving is a ubiquitous tool for controlling experimental quantum systems. When the
drive fields are of comparable, incommensurate frequencies, new theoretical tools are …

We give a mathematical procedure to obtain the renormalized adiabatic approximation for
the generalized quantum Rabi Hamiltonian with a quadratic interaction. The Hamiltonian …

抄録 自由空間中の原子は連続的なエネルギー分布をもつ多数の光子モードと 「広く浅く」
結合している. この状況で原子を励起すると, そのエネルギーは原子から光子へと不可逆的に散逸 …