Research Grants Program Office (RGPO)
Quantum coherence of relic neutrinos.
- Author(s): Fuller, George M
- Kishimoto, Chad T
- et al.
Published Web Locationhttps://doi.org/10.1103/physrevlett.102.201303
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.