Dipartimento di Fisica Sapienza Università di Roma
Aula Conversi (Dipartimento di Fisica – Ed. G. Marconi) Tuesday 14 January 2020, 16:00 → 18:00 Sapienza Università di Roma. In this talk, we will first introduce the basics of quantum computing using superconducting qubits, focusing on those aspects that are crucial for the implementation of quantum chemistry algorithms. In the second part, I will … Continua a leggere
22 November 2019, h. 15:30, Physics Department, Amaldi Room The public outreach event “Amaldi Research Center – Open Day – Quantum Technologies” has taken place on 22 Novembre 2019 starting from 15. This event was dedicated to the general public from High School. The news on the event has been promoted regularly thorugh different channels, … Continua a leggere
Scaling-up optical quantum technologies requires a combination of highly efficient multi-photon sources and integrated waveguide components. Here, we interface these scalable platforms, demonstrating high-rate three-photon interference with a quantum dot based multi-photon source and a reconfigurable photonic chip on glass. We actively demultiplex the temporal train of single photons obtained from a quantum emitter to … Continua a leggere
Introducing quantum sensors as a solution to real world problems demands reliability and controllability outside of laboratory conditions. Producers and operators ought to be assumed to have limited resources readily available for calibration, and yet, they should be able to trust the devices. Neural networks are almost ubiquitous for similar tasks for classical sensors: here … Continua a leggere
Friday 13th December 2019 at 16:00. Aula Conversi – Ed. Marconi, Sapienza Università di Roma According to quantum theory, the correlations between outcomes of separated experiments violate Bell inequalities (constraints that any local hidden variable model must satisfy). However, these violations are limited. In principle, higher violations could occur. Since these violations have extraordinary technological applications, it is important … Continua a leggere
Quantum technologies comprise an emerging class of devices capable of controlling superposition and entanglement of quantum states of light or matter, to realize fundamental performance advantages over ordinary classical machines. The technology of integrated quantum photonics has enabled the generation, processing and detection of quantum states of light at a steadily increasing scale and level … Continua a leggere
The wave or particle duality has long been considered a fundamental signature of the nonclassical behavior of quantum phenomena, especially in a delayed choice experiment, where the experimental setup revealing either the particle or the wave nature of the system is decided after the system has entered the apparatus. However, as counterintuitive as it might … Continua a leggere
QuantumLab is participating in the Quantum Information Structure of Spacetime (QISS) project funded from the John Templeton Foundation, 2019-2022 What is QISS?QISS is a cross–disciplinary fundamental research initiative in the broader fields of Quantum Information and Quantum Gravity, aiming to put the physics of quantum spacetime on an information theoretical basis, bring within reach empirical access … Continua a leggere
The image on the cover for Advanced Photonics Volume 1, Issue 4, provides a pictorial view of the hybrid two-photon entangled state. Quantum entanglement is present between the polarization of a first photon (bottom) and the vector vortex state of a second photon (top). The second photon has been transmitted through an air-core fiber and … Continua a leggere
Entanglement distribution between distant parties is one of the most important and challenging tasks in quantum communication. Distribution of photonic entangled states using optical fiber links is a fundamental building block toward quantum networks. Among the different degrees of freedom, orbital angular momentum (OAM) is one of the most promising due to its natural capability … Continua a leggere