216 citations · 1.4k across the 25 of their papers we have counts for
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Ultrastrong Coupling of a Qubit with a Nonlinear Optical Resonator
Fabio Mauceri, Alberto Mercurio, Salvatore Savasta +1
We study the interaction of a two-level atom with a single-mode nonlinear electromagnetic resonator, considering coupling strengths ranging from zero to the so-called deep strong c…
A non-perturbative no-go theorem for photon condensation in approximate models
G. M. Andolina, F. M. D. Pellegrino, A. Mercurio +3
Equilibrium phase transitions between a normal and a photon condensate state (also known as superradiant phase transitions) are a highly debated research topic, where proposals for…
Gauge-Independent Emission Spectra and Quantum Correlations in the Ultrastrong Coupling Regime of Open System Cavity-QED
Will Salmon, Chris Gustin, Alessio Settineri +5
A quantum dipole interacting with an optical cavity is one of the key models in cavity quantum electrodynamics (cavity-QED). To treat this system theoretically, the typical approac…
Gauge Principle and Gauge Invariance in Two-Level Systems
Salvatore Savasta, Omar Di Stefano, Alessio Settineri +3
The quantum Rabi model is a widespread description of the coupling between a two-level system and a quantized single mode of an electromagnetic resonator. Issues about this model's…