Unlocking the Future: University of Rochester and RIT Launch Groundbreaking Quantum Communications Network

Insider Brief

• Researchers at the University of Rochester and Rochester Institute of Technology have launched an experimental quantum communications network named RoQNET, spanning 11 miles of optical fiber.
• This network enables room-temperature quantum communication with photonic qubits, using integrated photonic chips to cut costs associated with superconducting detectors.
• RoQNET aims to facilitate distributed quantum entanglement and plans to connect with additional institutions throughout New York State, including national labs.
• Image: NETWORK IT: A photonic chip connected to a highly nonlinear crystal and a fiber array unit. (RIT)

PRESS RELEASE — The teams at the University of Rochester and Rochester Institute of Technology have successfully connected their campuses via RoQNET, a pioneering quantum communications network. Their recent paper in Optica Quantum highlights how single photons transmit information through 11 miles of fiber-optic lines at room temperature.

Quantum communication could revolutionize data security, as it makes messages nearly impossible to clone or intercept without detection. This technology utilizes quantum bits or qubits—particularly effective when made with photons. These tiny light particles are prime candidates for long-distance communication because they align perfectly with existing fiber-optic networks that crisscross our world.

Other qubit forms, like quantum dots or superconductors, may find specialized applications in quantum computing. However, for wide-reaching communication, photons have the edge. The paper addresses the goal of uniting various qubit types for a cohesive network.

“Creating quantum networks like RoQNET is a groundbreaking step toward safeguarding communications and enhancing distributed computing and imaging,” says Nickolas Vamivakas, a leading expert in optical physics from the University of Rochester. Unlike existing networks, RoQNET uniquely employs integrated quantum photonic chips for generating quantum light.

The collaboration between the two institutions brings together profound knowledge in optics, quantum information, and photonics. Their focus is to streamline quantum communication systems, as current methods often require expensive and cumbersome detection technologies.

“Photons travel at light speed, and their diverse wavelength range allows interaction with varying qubit types,” explains Stefan Preble, a RIT professor. “RoQNET serves as a testing ground for our pursuit of distributed quantum entanglement.”

In the long run, the researchers envision linking RoQNET with additional institutions in New York, such as Brookhaven National Lab and Stony Brook University. This collaboration could significantly advance future quantum technology.

Notably, the research has received support from the Air Force Research Laboratory, stressing its importance in national security and advanced technological developments.

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