Physics General News

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...

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...

Studying muonium to reveal new physics beyond the Standard Model

 Physics General News
 29 November 2022
By studying an exotic atom called muonium, researchers are hoping misbehaving muons will spill the beans on the Standard Model of particle physics. To make muonium, they use the most intense continuous beam of low energy muons in the world at Paul Scherrer Institute PSI. The research is published in...

Microscopic chains that mimic DNA

 Physics General News
 29 November 2022
Circular polycatenanes are chains that can move and change shape: they twist, stretch and wrap around themselves. Three physicists of the European Eutopia Cost network, coordinated by UniTrento, have dedicated themselves to the study of these structures....

Researchers realize long-lived storage of multimode quantum states

 Physics General News
 29 November 2022
Recently, a team led by Prof. Guo Guangcan achieved long-lived storage of high-dimensional orbital angular momentum (OAM) quantum states of photons based on cold atomic ensembles, using a guiding magnetic field combined with clock state preparation. Their work was published in Physical Review...

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