The world's lowest noise laser: Researchers outsmart quantum physics

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Squeezed light source: a crystal that is illuminated with green light places photons of an infrared laser beam (not visible) in a specific order thereby reducing the photon noise in that infrared laser. Image: Roman Schnabel MPI for Gravitational Ph ...
Squeezed light source: a crystal that is illuminated with green light places photons of an infrared laser beam (not visible) in a specific order, thereby reducing the photon noise in that infrared laser. Image: Roman Schnabel / MPI for Gravitational Physics

Researchers at the Max Planck Institute for Gravitational Physics and Leibniz University of Hanover have produced a laser beam of especially high quality. In doing so, they have achieved a new world record in the control of photons by precisely placing the photons in a specific order.


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