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Photonics chip allows light amplification

 Physics General News
 30 November 2022
The ability to achieve quantum-limited amplification of optical signals contained in optical fibers is arguably among the most important technological advances that are underlying our modern information society. In optical telecommunications, the choice of 1550 nm wavelength band is motivated not...

Physicists observe wormhole dynamics using a quantum computer

 Quantum Physics News
 30 November 2022
Scientists have, for the first time, developed a quantum experiment that allows them to study the dynamics, or behavior, of a special kind of theoretical wormhole. The experiment has not created an actual wormhole (a rupture in space and time), rather it allows researchers to probe connections...

Quantum leap for research into unhackable communications networks

 Quantum Physics News
 30 November 2022
Scientists at Heriot-Watt University in Edinburgh, Scotland, have published new research into the phenomenon known as quantum entanglement. This is when two particles—such as photons of light—remain connected even when they're separated by vast distances....

The Kibble-Zurek mechanism for nonequilibrium phase transitions

 Physics General News
 30 November 2022
The Kibble-Zurek (KZ) mechanism, confirmed experimentally only for equilibrium phase transitions, is also applicable for non-equilibrium phase transitions, as is now shown by Tokyo Tech researchers in a new study. The KZ mechanism is characterized by the formation of topological defects during...