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Spontaneous Emergence of Phase Coherence in a quasiparticle Bose-Einstein Condensate
Malte Koster, Matthias R. Schweizer, Timo Noack, Vitaliy I. Vasyuchka, Dmytro A. Bozhko, Burkard Hillebrands, Mathias Weiler, Alexander A. Serga, Georg von Freymann
https://arxiv.org/abs/2507.16862

Spontaneous Emergence of Phase Coherence in a quasiparticle Bose-Einstein Condensate
Since their prediction by Einstein at the dawn of quantum mechanics, Bose-Einstein condensates (BECs), owing to their property to show quantum phenomena on macroscopic scales, are drawing increasing attention across various fields in physics. They are the subject of many fascinating observations in various physical systems, from liquid helium to diluted atomic gases. In addition to real particles like atoms and composite bosons such as Cooper pairs or excitons, this phenomenon is also observed …