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10 April 2020
Vol 368, Issue 6487

About The Cover

Cover image expansion

COVER Artist's impression of an anyon collider implemented in a two-dimensional conductor. When colliding on the beamsplitter (at center), fermions (gray) always exit in two different outputs whereas bosons (yellow) always bunch together in the same output. Anyons (orange) display an intermediate behavior, revealing that their fractional statistics interpolate between those of bosons and fermions. See pages 131 and 173.
Illustration: C. Bickel/Science