Soap bubbles transform into lasers
Laser wavelengths depend on bubble's size, paving the way for bubble-laser-based sensors of pressure or ambient electric field
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Stefan Popa is a PhD student contributor to Physics World. He obtained his undergraduate degree from Durham University and is now studying for a PhD at Imperial College London. His research at the Centre for Cold Matter uses laser-cooled molecules to test fundamental symmetries. His experiment measures the shape of the electron inside ultracold molecules. This is predicted to be near-spherical by the Standard Model of particle physics, so measuring it is a test of physics beyond the standard model.
He enjoys combining his studies with the outdoors and can often be found climbing or hiking.
Laser wavelengths depend on bubble's size, paving the way for bubble-laser-based sensors of pressure or ambient electric field
Measurement calls into question theories beyond the Standard Model
Bond between an ion and a Rydberg atom is longer than some bacteria
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