8 papers
Conditional non-Hermitian acceleration of multiphoton atomic transitions
Marcos V. S. de Paula, Alexandre P. Costa, A. V. Dodonov
Continuous monitoring can convert a dissipative channel into a resource for accelerating otherwise slow multiphoton transitions. We consider a three-level atom in a configurati…
Comparison of the standard and dressed-picture master equations for the quantum Rabi model in the ultrastrong coupling regime
Alexandre P. Costa, Hebert S. Rego de Oliveira, Alexandre Dodonov
The goal of this chapter is to investigate the effects of relaxation and dephasing on the quantum Rabi model in the ultrastrong coupling regime, and to provide explicit formulas th…
Equivariant localization for higher derivative supergravity
Pietro Benetti Genolini, Florian Gaar, Jerome P. Gauntlett +1
Conformal supergravity provides an effective off-shell formalism to study higher derivative actions. We show that the , theory admits equivariantly closed form…
One- and multiphoton resonances in the light-atom interaction
Alexandre P. Costa, Alexandre V. Dodonov
The interaction between atomic systems and electromagnetic fields is central to modern physics and emerging quantum technologies. The Rabi models, in their semiclassical and quantu…
Metrological power of single-qubit dynamical Casimir effect in circuit QED
A. P. Costa, H. R. Schelb, A. V. Dodonov
We consider a nonstationary circuit QED system described by the quantum Rabi model, in which an artificial two-level atom with a tunable transition frequency is coupled to a single…
Comparison of Quantum and Semiclassical Rabi models near multiphoton resonances in the presence of parametric modulation
M V S de Paula, M A Damasceno Faustino, A V Dodonov
We compare the semiclassical and quantum predictions for the unitary dynamics of a two-level atom interacting with a single-mode electromagnetic field in the presence of parametric…