Phys. Rev. Lett. 102, 201303 (2009) [4 pages]Quantum Coherence of Relic Neutrinos
See accompanying Physics Focus We argue that in at least a portion of the history of the Universe the relic background neutrinos are spatially extended, coherent superpositions of mass states. We show that an appropriate quantum mechanical treatment affects the neutrino mass values derived from cosmological data. The coherence scale of these neutrino flavor wave packets can be an appreciable fraction of the causal horizon size, raising the possibility of spacetime curvature-induced decoherence. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.201303
DOI:
10.1103/PhysRevLett.102.201303
PACS:
14.60.Pq, 03.65.Yz, 98.80.Cq
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