250 citations · 2.3k across the 41 of their papers we have counts for
41 papers
Waveguide QED with Quadratic Light-Matter Interactions
Uesli Alushi, Tomás Ramos, Juan José García-Ripoll +2
Quadratic light-matter interactions are nonlinear couplings such that quantum emitters interact with photonic or phononic modes exclusively via the exchange of excitation pairs. Im…
First design of a superconducting qubit for the QUB-IT experiment
Danilo Labranca, Hervè Atsè Corti, Leonardo Banchi +5
Quantum sensing is a rapidly growing field of research which is already improving sensitivity in fundamental physics experiments. The ability to control quantum devices to measure…
Critical Quantum Metrology in the Non-Linear Quantum Rabi Model
Zu-Jian Ying, Simone Felicetti, Gang Liu +1
The quantum Rabi model (QRM) with linear coupling between light mode and qubit exhibits the analog of a second order phase transition for vanishing mode frequency which allows for…
Non-Gaussian superradiant transition via three-body ultrastrong coupling
Fabrizio Minganti, Louis Garbe, Alexandre Le Boité +1
We introduce a class of quantum optical Hamiltonian characterized by three-body couplings, and propose a circuit-QED scheme based on state-of-the-art technology that implements the…
Exponential precision by reaching a quantum critical point
Louis Garbe, Obinna Abah, Simone Felicetti +1
Quantum metrology shows that by exploiting nonclassical resources it is possible to overcome the fundamental limit of precision found for classical parameter-estimation protocols.…
Dispersive qubit readout with machine learning
Enrico Rinaldi, Roberto Di Candia, Simone Felicetti +1
Open quantum systems can undergo dissipative phase transitions, and their critical behavior can be exploited in sensing applications. For example, it can be used to enhance the fid…
Critical Quantum Metrology with Fully-Connected Models: From Heisenberg to Kibble-Zurek Scaling
Louis Garbe, Obinna Abah, Simone Felicetti +1
Phase transitions represent a compelling tool for classical and quantum sensing applications. It has been demonstrated that quantum sensors can in principle saturate the Heisenberg…
Parameter estimation of time and frequency shifts with generalized HOM interferometry
Nicolas Fabre, Simone Felicetti
Hong-Ou-Mandel interferometry takes advantage of the quantum nature of two-photon interference to increase the resolution of precision measurements of time-delays. Relying on few-p…
Critical parametric quantum sensing
R. Di Candia, F. Minganti, K. V. Petrovnin +2
Critical quantum systems are a promising resource for quantum metrology applications, due to the diverging susceptibility developed in proximity of phase transitions. Here, we asse…
Photoprotecting uracil by coupling with lossy nanocavities
Simone Felicetti, Jacopo Fregoni, Thomas Schnappinger +3
We analyze how the photorelaxation dynamics of a molecule can be controlled by modifying its electromagnetic environment using a nanocavity mode. In particular, we consider the pho…
Two-photon-interaction effects in the bad-cavity limit
Nicolò Piccione, Simone Felicetti, Bruno Bellomo
Various experimental platforms have proven to be valid testbeds for the implementation of nondipolar light-matter interactions, where atomic systems and confined modes interact via…
Producing delocalized frequency-time Schrödinger cat-like states with HOM interferometry
N. Fabre, J. Belhassen, A. Minneci +7
In the late 80's, Ou and Mandel experimentally observed signal beatings by performing a non-time resolved coincidence detection of two photons having interfered in a balanced beam…
Dissipation-induced bistability in the two-photon Dicke model
Louis Garbe, Peregrine Wade, Fabrizio Minganti +3
The Dicke model is a paradigmatic quantum-optical model describing the interaction of a collection of two-level systems with a single bosonic mode. Effective implementations of thi…
Critical Quantum metrology with a finite-component quantum phase transition
Louis Garbe, Matteo Bina, Arne Keller +2
Physical systems close to a quantum phase transition exhibit a divergent susceptibility, suggesting that an arbitrarily-high precision may be achieved by exploiting quantum critica…
Selective Interactions in the Quantum Rabi Model
L. Cong, S. Felicetti, J. Casanova +3
We demonstrate the emergence of selective -photon interactions in the strong and ultrastrong coupling regimes of the quantum Rabi model with a Stark coupling term. In particular…
Observing the Spectral Collapse of Two-Photon Interaction Models
Simone Felicetti, Alexandre Le Boité
Until very recently, two-photon interaction processes have been considered only as arising from second- or higher-order effects in driven systems, and so limited to extremely small…
Universal spectral features of ultrastrongly coupled systems
Simone Felicetti, Alexandre Le Boité
We identify universal properties of the low-energy subspace of a wide class of quantum optical models in the ultrastrong coupling limit, where the coupling strength dominates over…
Generation of time-frequency grid state with integrated biphoton frequency combs
N. Fabre, G. Maltese, F. Appas +8
Encoding quantum information in continuous variables is intrinsically faulty. Nevertheless, redundant qubits can be used for error correction, as proposed by Gottesman, Kitaev and…
Classification of Dark States in Multi-level Dissipative Systems
Daniel Finkelstein-Shapiro, Simone Felicetti, Thorsten Hansen +2
Dark states are eigenstates or steady-states of a system that are decoupled from the radiation. Their use, along with associated techniques such as Stimulated Raman Adiabatic Passa…
Ultrastrong coupling regime of non-dipolar light-matter interactions
Simone Felicetti, Myung-Joong Hwang, Alexandre Le Boité
We present a circuit-QED scheme which allows to reach the ultrastrong coupling regime of a nondipolar interaction between a single qubit and a quantum resonator. We show that the s…
Metrological advantage at finite temperature for Gaussian phase estimation
Louis Garbe, Simone Felicetti, Perola Milman +2
In the context of phase estimation with Gaussian states, we introduce a quantifiable definition of metrological advantage that takes into account thermal noise in the preparation p…
Demonstration of an effective ultrastrong coupling between two oscillators
Danijela Marković, Sébastien Jezouin, Quentin Ficheux +6
When the coupling rate between two quantum systems becomes as large as their characteristic frequencies, it induces dramatic effects on their dynamics and even on the nature of the…
Two-photon quantum Rabi model with superconducting circuits
S. Felicetti, D. Z. Rossatto, E. Rico +2
We propose a superconducting circuit to implement a two-photon quantum Rabi model in a solid-state device, where a qubit and a resonator are coupled by a two-photon interaction. We…
The quantum Rabi model in a superfluid Bose-Einstein condensate
S. Felicetti, G. Romero, E. Solano +1
We propose a quantum simulation of the quantum Rabi model in an atomic quantum dot, which is a single atom in a tight optical trap coupled to the quasiparticle modes of a superflui…