A team of physicists experimentally produces quantum-superpositions, simply using a mirror. ... And this fundamental undecidability is guaranteed by the mirror which takes up the photon momentum.

As each atom drops back down to a lower energy level it emits a photon – and some photons bounce off the mirror. Each departing photon provides a very slight kick to the atom in the opposite direction ...

When an atom emits light (i.e. a photon) into a particular direction, ... And this fundamental undecidability is guaranteed by the mirror which takes up the photon momentum.

Researchers at Tampere University and their collaborators from Germany and India have experimentally confirmed that angular momentum is conserved when a single photon is converted into a ...

The momentum increase is so substantial, that it surpasses that of free-space photons by a factor of a thousand, making it comparable to the electron momenta in materials." ...

The development of color routers (CRs) realizes modulation of photon momentum on the frequency and spatial domains. Scientists in China demonstrate an active manipulation of dichromatic photon ...

"The mirror always tells the truth," Tomaž Požar, ... Abraham suggested that the momentum of a photon should be inversely related to the "refractive index," a number that describes how light ...

The idea that light has momentum is not new, but the exact nature of how light interacts with matter has remained a mystery for close to 150 years. New research may have uncovered the key to one ...

Kenneth Chau, associate professor of engineering at UBC Okanagan, used a mirror, acoustic sensors and a laser to measure the momentum of light. Photo by UBC Okanagan.