A vortex, vortex and a half
![A vortex, vortex and a half A vortex, vortex and a half](/image/417/1108x622.jpg)
A vortex, vortex and a half
Whirlwind polaritons in quantum optoelectronics laboratory! Physicists at the EPFL have managed to observe for the first time a phenomenon that the theory had predicted there are more than 20 years. The results are being published in Science.
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