Quantum dots, semiconductor nanostructures exhibiting discrete energy levels, have emerged as quintessential quantum emitters for on‐demand single-photon generation. Their unique confinement ...

A photonics research group co-led by Gregor Weihs of the University of Innsbruck has developed a new technique for generating multi-photon states from quantum dots that overcomes the limitations of ...

Scientists have, for the first time, experimentally proven that angular momentum is conserved even when a single photon splits into two, pushing quantum physics to its most fundamental limits. Using ...

The article was selected as a Featured Article in APL Quantum ("Approaching unity photon collection from NV centers via ultra-precise positioning of nanodiamonds in hybrid nanoantennas"). Diamonds ...

Schematic of a single photon with zero angular momentum (green) splitting into two photons (red) with either zero or opposite angular momenta (sketched through the spatially varying color), which adds ...

Physicists at the UK’s Central Laser Facility have recorded the first observation of quantum radiation reaction, detecting ...