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 … Leggi tutto
Mutually entangled multi-photon states are at the heart of all-optical quantum technologies. While impressive progresses have been reported in the generation of such quantum light states using free space apparatus, high-fidelity high-rate on-chip entanglement generation is crucial for future scalability. In this work, we use a bright quantum-dot based single-photon source to demonstrate the high … Leggi tutto
Engineering single-photon states endowed with Orbital Angular Momentum (OAM) is a powerful tool for quantum information photonic implementations. Indeed, thanks to its unbounded nature, OAM is suitable to encode qudits allowing a single carrier to transport a large amount of information. Nowadays, most of the experimental platforms use nonlinear crystals to generate single photons through … Leggi tutto
A joint paper between IFN-CNR, CNRS and Sapienza on a new method for the quantification of n-photon indistinguishability has been published in PRX! We report on a universal method to measure the genuine indistinguishability of n-photons – a crucial parameter that determines the accuracy of optical quantum computing. Our approach relies on a low-depth cyclic … Leggi tutto
Principal Investigator of LIN INL, Ernesto F. Galvão, is Visiting Professor at Sapienza Università di Roma until September 19th 2022.
QuiX Quantum, PHOQUSING partner and market leader in photonic quantum computing hardware, has realized the largest quantum photonic processor compatible with quantum dots for the European project PHOQUSING. The processor realized by QuiX Quantum is the core component of the quantum sampling machine that the project aims to realize. QuiX Quantum delivers a record-size 20-mode quantum photonic processor compatible with quantum … Leggi tutto
UPDATE: New dates for the exhibition “Speak the unspeakable”. We look forward to meeting you from 11 to 13 April at the Museo Dell’Arte Classica at Sapienza Campus. Download the updated leaflet here Registration available here: https://sites.google.com/uniroma1.it/sapienzaquantumweeks The Italian Quantum Weeks brings together the national scientific community in quantum technologies intending to organize outreach events for … Leggi tutto
PHOQUSING beneficiary QuiX Quantum, together with the University of Twente, published a new paper: “Experimental demonstration of an efficient, semi-device-independent photonic indistinguishability witness” Efficient and reliable measurements of photonic indistinguishability are crucial to solidify claims of a quantum advantage in photonics. Existing indistinguishability witnesses may be vulnerable to implementation loopholes, showing the need for a … Leggi tutto