A seminal task in quantum information theory is to realize a device able to produce copies of a generic input state with the highest possible output fidelity, thus realizing an optimal quantum cloning machine. Recently, the concept of variational quantum cloning was introduced: a quantum machine learning algorithm through which, by exploiting a classical feedback … Leggi tutto
Multiphoton indistinguishability is a central resource for quantum enhancement in sensing and computation. Developing and certifying large-scale photonic devices requires reliable and accurate characterization of this resource, preferably using methods that are robust against experimental errors. Here, we propose a set of methods for the characterization of multiphoton indistinguishability, based on measurements of bunching and … Leggi tutto
The exploitation of certification tools by end users represents a fundamental aspect of the development of quantum technologies as the hardware scales up beyond the regime of classical simulability. Certifying quantum networks becomes even more crucial when the privacy of their users is exposed to malicious quantum nodes or servers as in the case of … Leggi tutto
On 27 March 2025, Beatrice Polacchi will give a talk at the workshop “QIA & Quantum Punks: New Applications for the Quantum Internet” at the Quantum Information Center Sorbonne (QICS), Sorbonne University of Paris, organized by Veriqloud and Deep Quantum, in partnership with the Use Case Team of the Quantum Internet Alliance.The talk will be … Leggi tutto
The implementation of large-scale universal quantum computation represents a challenging and ambitious task on the road to quantum processing of information. In recent years, an intermediate approach has been pursued to demonstrate quantum computational advantage via non-universal computational models. A relevant example for photonic platforms has been provided by the Boson Sampling paradigm and its … Leggi tutto
A News and Views article on “Modular quantum-to-quantum factory in an integrated photonic processor ” has been published on Nature Photonics: Processing quantum randomness with light. S. Paesani, 19, pages 5–6 (2025)
Generating and manipulating randomness is essential for numerous information technology applications, and quantum mechanics has been shown to offer distinct advantages in this area. A notable model for randomness manipulation is the Bernoulli factory, which enables the controlled adjustment of the bias in Bernoulli random processes. Initially, this framework was explored entirely within a classical … Leggi tutto
The Quantum Lab group of Sapienza University organized an engaging didactic exposition on quantum mechanics and quantum technologies titled “Dire l’indicibile” as part of the European Researcher’s Night 2024, held at Città dell’Altra Economia last weekend in Roma (link: https://www.scienzainsieme.it/). The event aimed to explore the fascinating and often counterintuitive world of quantum mechanics, making … Leggi tutto
The exploitation of certification tools by end users represents a fundamentalaspect of the development of quantum technologies as the hardware scales upbeyond the regime of classical simulatability. Certifying quantum networksbecomes even more crucial when the privacy of their users is exposed tomalicious quantum nodes or servers as in the case of multi-client distributedblind quantum computing, … Leggi tutto
A seminal task in quantum information theory is to realize a device able to produce copies of a generic input state with the highest possible output fidelity, thus realizing an optimal quantum cloning machine. Recently, the concept of variational quantum cloning was introduced: a quantum machine learning algorithm through which, by exploiting a classical feedback loop informed … Leggi tutto