Production and analysis of qubit entanglement on a silicon photonic chip

by Raffaele Santagati (University of Bristol)

Tuesday 8 Jul 2014, 14:30 → 16:00 Europe/Rome

Aula 3 (Dipartimento di Fisica - E. FErmi)

We present a silicon-on-insulator quantum photonic device able to generate and analyse two entangled qubits states. We use this device to demonstrate high-visibility quantum interference between resonant SFWM sources, phase-stable frequency-selection, and quantum state tomography. We also characterise the joint spectrum of these sources in order to consider their scalability for universal quantum computing. This is the first time an entangled state of photonic qubits has been both generated and analysed on-chip.