Carleton University

Purpose

A key expectation of the physical interconnects for a potential Quantum Internet is the reliable processing and transfer of quantum information. Although promising technological supremacy over classical information technology, quantum information is extremely fragile. This places special and unique challenges on the design and materials properties of quantum interconnects. A promising materials platform candidate is low pressure chemical vapor deposited (LPCVD) silicon nitride (Si3N4). Its wide bandgap, ultra-low loss, large nonlinear refractive index and compatibility with well-established CMOS fabrication methodologies makes it ideal for guiding and processing fragile quantum states exchanged between quantum nodes of varying character and energy or wavelength requirement. The Project will see Carleton University and the National Research Council work collaboratively to establish a Silicon Nitride (Si3N4) materials platform for quantum technologies