Quantum Computer

Researchers improve a widely used simulation method for high-performance computing clusters.

Sensing with levitated nanoparticles has so far been limited by the precision of position measurements. Now, researchers have demonstrated a new method for optical interferometry in which light scattered by a particle is reflected by a mirror. This opens up new possibilities for using levitated particles as sensors, in particular, in quantum regimes.

Researchers have made a new discovery on how light behaves in complex media, media that tends to distort light significantly. They demonstrated that 'distortion' is a matter of perspective, outlining a simple rule that applies to all light and a vast array of media, including underwater, optical fiber, transmission in the atmosphere and even through living biological samples. Their novel quantum approach to the problem resolves a standing debate on whether some forms of light are robust or not, […]

Communication networks need nodes at which information is processed or rerouted. Physicists have now developed a network node for quantum communication networks that can store single photons in a vapor cell and pass them on later.

Researchers have shown that microbrewery waste can be used as a carbon source to synthesize quantum dots.