7.7k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Scuola Normale SuperioreIT710 papers
- National Enterprise for NanoScience and NanoTechnologyIT581 papers
- University of Modena and Reggio EmiliaIT183 papers
- Italian Institute of TechnologyIT173 papers
- University of PisaIT153 papers
- Centre National de la Recherche ScientifiqueFR129 papers
- Superconducting and other Innovative Materials and Devices InstituteIT96 papers
- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT81 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT69 papers
- National Research CouncilLK68 papers
- University of PalermoIT68 papers
- Center for Nanotechnology InnovationIT65 papers
20 papers · 2 filters
Optimal estimates of trace distance between bosonic Gaussian states and applications to learning
Lennart Bittel, Francesco Anna Mele, Antonio Anna Mele +2
Gaussian states of bosonic quantum systems enjoy numerous technological applications and are ubiquitous in nature. Their significance lies in their simplicity, which in turn rests…
Genuine multipartite entanglement from many-electron systems
Filippo Troiani, Celestino Angeli, Andrea Secchi +1
We demonstrate that, contrary to common wisdom, genuine multipartite entanglement (GME) can be abundantly generated from simple non-correlated many-electron states. We show that th…
Optimized QUBO formulation methods for quantum computing
Dario De Santis, Salvatore Tirone, Stefano Marmi +1
Several combinatorial optimization problems can be solved with NISQ devices once that a corresponding quadratic unconstrained binary optimization (QUBO) form is derived. The aim of…
Generalized phase estimation in noisy quantum gates
Giovanni Ragazzi, Simone Cavazzoni, Paolo Bordone +1
We examine metrological scenarios where the parameter of interest is encoded onto a quantum state through the action of a noisy quantum gate and investigate the ultimate bound to p…
Perfect chiral quantum routing
Simone Cavazzoni, Giovanni Ragazzi, Paolo Bordone +1
Routing classical and quantum information is a fundamental task for quantum information technologies and processes. Here, we consider information encoded in the position of a quant…
Critical metrology of minimally accessible anisotropic spin chains
Marco Adani, Simone Cavazzoni, Berihu Teklu +2
We address quantum metrology in critical spin chains with anisotropy and Dzyaloshinskii-Moriya (DM) interaction, and show how local and quasi-local measurements may be exploited to…
Optimizing topology for quantum probing with discrete-time quantum walks
Simone Cavazzoni, Paolo Bordone, Matteo G. A. Paris
Discrete-time quantum walk (DTQW) represents a convenient mathematical framework for describing the motion of a particle on a discrete set of positions when this motion is conditio…
Dipole-dipole interactions mediated by a photonic flat band
Enrico Di Benedetto, Alejandro Gonzalez-Tudela, Francesco Ciccarello
Flat bands (FBs) are energy bands with zero group velocity, which in electronic systems were shown to favor strongly correlated phenomena. Indeed, a FB can be spanned with a basis…
Computable entanglement cost under positive partial transpose operations
Ludovico Lami, Francesco Anna Mele, Bartosz Regula
Quantum information theory is plagued by the problem of regularisations, which require the evaluation of formidable asymptotic quantities. This makes it computationally intractable…
Learning quantum states of continuous variable systems
Francesco Anna Mele, Antonio Anna Mele, Lennart Bittel +5
Quantum state tomography, aimed at deriving a classical description of an unknown state from measurement data, is a fundamental task in quantum physics. In this work, we analyse th…
Magic-induced computational separation in entanglement theory
Andi Gu, Salvatore F. E. Oliviero, Lorenzo Leone
Entanglement serves as a foundational pillar in quantum information theory, delineating the boundary between what is classical and what is quantum. The common assumption is that hi…
Application of machine learning to experimental design in quantum mechanics
Federico Belliardo, Fabio Zoratti, Vittorio Giovannetti
The recent advances in machine learning hold great promise for the fields of quantum sensing and metrology. With the help of reinforcement learning, we can tame the complexity of q…
Applications of model-aware reinforcement learning in Bayesian quantum metrology
Federico Belliardo, Fabio Zoratti, Vittorio Giovannetti
An important practical problem in the field of quantum metrology and sensors is to find the optimal sequences of controls for the quantum probe that realize optimal adaptive estima…
Symmetry shapes thermodynamics of macroscopic quantum systems
Vasco Cavina, Ariane Soret, Timur Aslyamov +2
We derive a systematic approach to the thermodynamics of quantum systems based on the underlying symmetry groups. We show that the entropy of a system can be described in terms of…
Quantum optics with giant atoms in a structured photonic bath
L. Leonforte, X. Sun, D. Valenti +4
We present a general framework to tackle quantum optics problems with giant atoms, i.e. quantum emitters each coupled {\it non-locally} to a structured photonic bath (typically a l…
Efficient implementation of discrete-time quantum walks on quantum computers
Luca Razzoli, Gabriele Cenedese, Maria Bondani +1
Quantum walks have proven to be a universal model for quantum computation and to provide speed-up in certain quantum algorithms. The discrete-time quantum walk (DTQW) model, among…
Characterization of partially accessible anisotropic spin chains in the presence of anti-symmetric exchange
Simone Cavazzoni, Marco Adani, Paolo Bordone +1
We address quantum characterization of anisotropic spin chains in the presence of antisymmetric exchange, and investigate whether the Hamiltonian parameters of the chain may be est…
The importance of using the averaged mutual information when quantifying quantum objectivity
Diana A. Chisholm, Luca Innocenti, G. Massimo Palma
In the context of quantum objectivity, a standard way to quantify the classicality of a state is via the mutual information between a system and different fractions of its environm…
Extended local ergotropy
Riccardo Castellano, Donato Farina, Vittorio Giovannetti +1
A fundamental problem in quantum thermodynamics is to properly quantify the work extractable from out-of-equilibrium systems. While for closed systems, maximum quantum work extract…
Dynamic Cooling on Contemporary Quantum Computers
Lindsay Bassman Oftelie, Antonella De Pasquale, Michele Campisi
We study the problem of dynamic cooling whereby a target qubit is cooled at the expense of heating up further identical qubits, by means of a global unitary operation. A stan…