Quantum Lab

Presentazione del libro “Nella Terra dei Qubit” del Prof. Simone Severini, direttore della sezione Quantum Computing di Amazon Web Services (AWS). Interverrà l’autore del libro, Simone Severini, intervistato dal giornalista ANSA Leonardo De Cosmo. Moderatore della discussione sarà Prof. Fabio Sciarrino, responsabile del gruppo di ricerca Quantum Lab del Dipartimento di Fisica della Sapienza. Vi … Continua a leggere

Il 14 aprile ricorre come ogni anno il World Quantum Day. Per questa occasione le Italian Quantum Weeks organizzano al Museo di Fisica dell’Università Federico IIdi Napoli un evento  interamente dedicato alla meccanica quantistica e alle sue più recenti applicazioni. Trai i vari interventi, Prof. Fabio Sciarrino terrà un seminario sulle tecnologie quantistiche fotoniche. Per registrarsi all’evento:https://forms.gle/spiri1Wtwi2GxXVn6 … Continua a leggere

Il gruppo di Informazione Quantistica Quantum Lab  e il Dipartimento di Fisica dell’Università Sapienza di Roma in collaborazione con Italian Quantum Weeks presentala mostra dedicata alla meccanica quantistica “Dire l’indicibile: l’entanglement quantistico“. Sulla spinta del Premio Nobel per la Fisica 2022, che ha premiato la ricerca sull’entanglement, il percorso si snoderà tra i principi della meccanica quantistica e tra i più affascinanti … Continua a leggere

Adopting quantum resources for parameter estimation discloses the possibility to realize quantum sensors operating at a sensitivity beyond the standard quantum limit. Such an approach promises to reach the fundamental Heisenberg scaling as a function of the employed resources N in the estimation process. Although previous experiments demonstrated precision scaling approaching Heisenberg-limited performances, reaching such … Continua a leggere

In a Bell experiment, it is natural to seek a causal account of correlations wherein only a common cause acts on the outcomes. For this causal structure, Bell inequality violations can be explained only if causal dependencies are modeled as intrinsically quantum. There also exists a vast landscape of causal structures beyond Bell that can … Continua a leggere

Estimation of physical quantities is at the core of most scientific research, and the use of quantum devices promises to enhance its performances. In real scenarios, it is fundamental to consider that resources are limited, and Bayesian adaptive estimation represents a powerful approach to efficiently allocate, during the estimation process, all the available resources. However, … Continua a leggere

High-dimensional biphoton states are promising resources for quantum applications, ranging from high-dimensional quantum communications to quantum imaging. A pivotal task is fully characterising these states, which is generally time-consuming and not scalable when projective measurement approaches are adopted. However, new advances in coincidence imaging technologies allow for overcoming these limitations by parallelising multiple measurements. Here, … Continua a leggere

Boson Sampling is a task that is conjectured to be computationally hard for a classical computer, but which can be efficiently solved by linear-optical interferometers with Fock state inputs. Significant advances have been reported in the last few years, with demonstrations of small- and medium-scale devices, as well as implementations of variants such as Gaussian … Continua a leggere

Quantum Darwinism offers an explanation for the emergence of classical objective features — those we are used to at macroscopic scales — from quantum properties at the microscopic level. The interaction of a quantum system with its surroundings redundantly proliferates information to many parts of the environment, turning it accessible and objective to different observers. … Continua a leggere