Researchers have experimentally created a unique state of matter, a Bose gas exhibiting ‘fractional Fermi seas’ where electrons occupy energy levels at fractions, confirmed by measurable Friedel oscillations and potentially useful for advanced technologies. Scientists have, for the first time, experimentally realised fractional Fermi seas, exotic states of matter predicted by extensions to the Pauli exclusion principle. Yi Zeng, from CEREMADE, CNRS, Universit e Paris-Dauphine, Universit e PSL, and Alvis... [10630 chars]
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