Publications (39)
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…
Critical quantum metrology in a stabilized two-photon Rabi model
Zu-Jian Ying, Hang-Hang Han, Bo-Jian Li +2
We investigate a generalized quantum Rabi model (QRM) with two- and four-photon terms with respect to applications for non-linear critical quantum metrology. In the introduced mode…
Collective Enhancement of Photon Blockade via Two-Photon Interactions
Lijuan Dong, Aanal Jayesh Shah, Peter Kirton +2
Analogous to Coulomb blockade for electrons, photon blockade is a key quantum optical effect in which the presence of one photon prevents the transmission of subsequent ones throug…
Entanglement Detection with Single Hong-Ou-Mandel Interferometry
Chang Jian Kwong, Simone Felicetti, Leong Chuan Kwek +1
Entanglement is not only fundamental for understanding multipartite quantum systems but also generally useful for quantum information applications. Despite much effort devoted so f…
Waveguide QED with Quadratic Light-Matter Interactions
Uesli Alushi, Tomás Ramos, Juan José GarcÃa-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…
Entanglement of superconducting qubits via acceleration radiation
Laura GarcÃa-Ãlvarez, Simone Felicetti, Enrique Rico +2
We show that simulated relativistic motion can generate entanglement between artificial atoms and protect them from spontaneous emission. We consider a pair of superconducting qubi…
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…
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…
Collective quantum enhancement in critical quantum sensing
Uesli Alushi, Alessandro Coppo, Valentina Brosco +2
Critical systems represent a valuable resource in quantum sensing and metrology. Critical quantum sensing (CQS) protocols can be realized using finite-component phase transitions,…
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…
Hybrid Analog Teleportation-Direct Transmission in Noisy Bosonic Channels
Uesli Alushi, Simone Felicetti, Roberto Di Candia
Quantum teleportation uses a shared entangled resource, local operations, and a digitally error-corrected classical channel to transfer quantum states between distant parties. We i…
Criticality-Enhanced Quantum Sensing with a Parametric Superconducting Resonator
Guillaume Beaulieu, Fabrizio Minganti, Simone Frasca +4
Quantum metrology, a cornerstone of quantum technologies, exploits entanglement and superposition to achieve higher precision than classical protocols in parameter estimation tasks…
Demonstration of an effective ultrastrong coupling between two oscillators
Danijela MarkoviÄ, 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…
Optimality and Noise-Resilience of Critical Quantum Sensing
Uesli Alushi, Wojciech Górecki, Simone Felicetti +1
We compare critical quantum sensing to passive quantum strategies to perform frequency estimation, in the case of single-mode quadratic Hamiltonians. We show that, while in the uni…
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…
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…
Observation of first- and second-order dissipative phase transitions in a two-photon driven Kerr resonator
Guillaume Beaulieu, Fabrizio Minganti, Simone Frasca +4
In open quantum systems, first- and second-order dissipative phase transitions (DPTs) can emerge in the thermodynamic limit from the competition between unitary evolution, driving…
Generalized spin squeezing inequalities for particles number with quantum fluctuations
Ibrahim Saideh, Simone Felicetti, Thomas Coudreau +2
Particle number fluctuations, no matter how small, are present in experimental set-ups. One should rigorously take these fluctuations into account, especially, for entanglement det…
Testing sequential quantum measurements: how can maximal knowledge be extracted?
Eleonora Nagali, Simone Felicetti, Pierre-Louis de Assis +3
The extraction of information from a quantum system unavoidably implies a modification of the measured system itself. It has been demonstrated recently that partial measurements ca…
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…
Quantum Rabi model in the Brillouin zone with ultracold atoms
Simone Felicetti, Enrique Rico, Carlos Sabin +6
The quantum Rabi model describes the interaction between a two-level quantum system and a single bosonic mode. We propose a method to perform a quantum simulation of the quantum Ra…
Dynamical entanglement percolation with spatially correlated disorder
Lorenzo Cirigliano, Valentina Brosco, Claudio Castellano +3
The distribution of entanglement between the nodes of a quantum network plays a fundamental role in quantum information applications. In this work, we investigate the dynamics of a…
Nonlocal Quantum Phase Transitions
Alessandro Coppo, Aanal Jayesh Shah, Hadiseh Alaeian +3
Phase transitions are paradigmatic examples of emergent phenomena, in which symmetries present at the microscopic level can be spontaneously broken in the thermodynamic limit. Two…
Generation of frequency entanglement with an effective quantum dot-waveguide two-photon quadratic interaction
Mohamed Meguebel, Maxime Federico, Simone Felicetti +2
Light-matter interactions with quantum dots have been extensively studied to harness key quantum properties of photons, such as indistinguishability and entanglement. In this theor…
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…
Nonlinearity-driven Topology via Spontaneous Symmetry Breaking
Alessandro Coppo, Alexandre Le Boité, Simone Felicetti +1
Topology and nonlinearity are deeply connected. However, whether topological effects can arise solely from the structure of nonlinear interaction terms, and the nature of the resul…
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…
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…
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…
Dissipative Phase Transition in the Two-Photon Dicke Model
Aanal Jayesh Shah, Peter Kirton, Simone Felicetti +1
We explore the dissipative phase transition of the two-photon Dicke model, a topic that has garnered significant attention recently. Our analysis reveals that while single-photon l…
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.…
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…
Analog Quantum Teleportation
Uesli Alushi, Simone Felicetti, Roberto Di Candia
Digital teleportation protocols make use of entanglement, local measurements and a classical communication channel to transfer quantum states between remote parties. We consider an…
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 Sensing: a tutorial on parameter estimation near quantum phase transitions
George Mihailescu, Uesli Alushi, Roberto Di Candia +2
Quantum phenomena offer the possibility of measuring physical quantities with precision beyond classical limits. However, current progress is constrained by scalability, environmen…
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…
Time correlations from steady-state expectation values
Wojciech Górecki, Simone Felicetti, Lorenzo Maccone +1
Recovering properties of correlation functions is typically challenging. On one hand, experimentally, it requires measurements with a temporal resolution finer than the system's dy…
Interplay between time and energy in bosonic noisy quantum metrology
Wojciech Górecki, Francesco Albarelli, Simone Felicetti +2
Quantum entanglement and coherence often allow for protocols that outperform classical ones in estimating a system's parameter. When using infinite-dimensional probes (such as a bo…
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…