2025/10/24 by Hanzhen Lin, Lin, Hanzhen, Yukun Lu +3 · 3 voices · 1 citation
Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Experiment (nucl-ex) #Quantum Physics (quant-ph) #hep-ph #nucl-ex #physics.atom-ph #quant-ph
paper · pdf · doi:10.48550/arxiv.2510.21692
arxiv published 2025/10/24 · arxiv updated 2026/07/03
This paper lays out the principles of how Bose-Einstein condensates can modify radioactive decay. We highlight the challenges of many modes and short coherence times due to the ≈ MeV energies of the emitted radiation. Recent proposals for gamma ray and neutrino lasers claim that using a Bose-Einstein condensate as a source would solve these issues. We show that this is not the case, and the proposed experiments would have a gain of only 10-16 or smaller. We also analyze proposals for gamma ray lasers based on stimulated annihilation of positronium Bose-Einstein condensates.