Molecular Coating Cleans up Noisy Quantum Light

Coating increases photon precision for quantum computers

Optical micrograph of the monolayer tungsten diselenide sample, with the right-hand side functionalised with PTCDA. Credit: Mark Hersam, Northwestern University Engineers have developed a new coating technique that will help make quantum light sources more precise and consistent. The team used an organic molecule called PTCDA to coat a semiconductor and caused it to release single photons at a time. Each photon also had identical energies, which…

Molecular coating cleans up noisy quantum light

Quantum technologies demand perfection: one photon at a time, every time, all with the same energy. Even tiny deviations in the number or energy of photons can derail devices, threatening the performance of quantum computers that someday could make up a quantum internet.

New Molecular Coating Enhances Clarity of Quantum Light

Quantum technologies are on the brink of a revolution, poised to redefine the boundaries of computation, communication, and sensing. At the heart of this revolution lies the challenge of producing photons — the very essence of quantum information. These elusive particles must be emitted with unparalleled precision; even the slightest deviation in their energy or […]