Quantam Computing – Tal Carmon & Ran Finkelstein

Capturing light to connect quantum processors

Quantum computers rely on qubits that can communicate by exchanging photons. However, qubits emit photons in all directions, while conventional optical systems capture only a limited portion of this light. This loss of photons creates a major challenge for efficiently connecting quantum processors over distance.

Research by Prof. Tal Carmon and Dr. Ran Finkelstein addresses this challenge through a new optical element designed to surround the qubit and capture its emitted light from nearly all directions, including light traveling backwards. The element redirects the collected photons into a single, collimated beam, concentrating the quantum information into a form that can be efficiently transmitted. By dramatically improving how much light can be collected from a qubit, this approach could help enable more efficient links between quantum processors and contribute to the development of larger-scale quantum computing systems.