Quantum key distribution with entangled photons generated on demand by a quantum dot

Quantum key distribution—exchanging a random secret key relying on a quantum mechanical resource—is the core feature of secure quantum networks. Entanglement-based protocols offer additional layers of security and scale favorably with quantum repeaters, but the stringent requirements set on the photon source have made their use situational so far. Semiconductor-based quantum emitters are a promising … Continua a leggere

INgegneria INcontra – Fabio Sciarrino

Giovedì 25 marzo 2021 alle ore 19.00, nell’ambito della manifestazione INgegneria INcontra, Fabio Sciarrino ha tenuto il seminario “La seconda rivoluzione quantistica: dal computer alle comunicazioni”. Le tecnologie quantistiche promettono di migliorare la nostra società in diversi ambiti – quali la crittografia, la simulazione di reazioni chimiche, l’ingegneria dei materiali e le nanotecnologie. Stiamo assistendo ad … Continua a leggere

World Quantum Day

Today, 14th of April, a new initiative from quantum scientists around the world has been launched:  the “World quantum day”.  The first global celebration will take place in one year, on the 14th of April 2022. The aim of this recurrence is to raise interest in quantum science’s achievements and allow a general audience to … Continua a leggere

Publication on New Journal of Physics

The generation and control of quantum correlations in high-dimensional systems is a major challenge in the present landscape of quantum technologies. Achieving such non-classical high-dimensional resources will potentially unlock enhanced capabilities for quantum cryptography, communication and computation. We propose a protocol that is able to attain entangled states of d-dimensional systems through a quantum-walk-based  transfer … Continua a leggere

News and Views from the Quantum Lab published in Science Bulletin on the Quantum computational advantage Science paper from Prof. Jian-Wei Pan’s team

The Quantum Lab has just published in the journal Science Bulletin a News and Views paper on the recent quantum computational advantage demonstration reported in Science from Prof. Jian-Wei Pan’s team in China. Here is reference to the Science paper https://science.sciencemag.org/content/early/2020/12/02/science.abe8770 News and Views on Science Bulletin F. Sciarrino, N. Spagnolo, The race towards quantum … Continua a leggere

Propagation of structured light through tissue-mimicking phantoms

Optical interrogation of tissues is broadly considered in biomedical applications. Nevertheless, light scattering by tissue limits the resolution and accuracy achieved when investigating sub-surface tissue features. Light carrying optical angular momentum or complex polarization profiles, offers different propagation characteristics through scattering media compared to light with unstructured beam profiles. Here we discuss the behaviour of … Continua a leggere

Computer quantistici: istruzioni per l’uso – 29 ottobre

Computer quantistici: istruzioni per l’usoBenvenuti nell’era della quantum supremacy Incontro con Fabio Sciarrino, modera Leonardo De Cosmo29 ottobre, ore 18:30 Delle tecnologie quantistiche si parla ormai ovunque ma è complicato riuscire a capirne davvero qualcosa. In un dialogo semiserio, un giornalista scientifico e uno dei più autorevoli ricercatori del settore cercheranno di raccontare cosa sono … Continua a leggere