Optical simulation of neutrino oscillations in binary waveguide arrays

Andrea Marini*, Stefano Longhi, Fabio Biancalana

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)
79 Downloads (Pure)


We theoretically propose and investigate an optical analogue of neutrino oscillations in a pair of vertically displaced binary waveguide arrays with longitudinally modulated effective refractive index. Optical propagation is modeled through coupled-mode equations, which in the continuous limit converge to two coupled Dirac equations for fermionic particles with different mass states, analogously to neutrinos. In addition to simulating neutrino oscillation in the noninteracting regime, our optical setting enables us to explore neutrino interactions in extreme regimes that are expected to play an important role in massive supernova stars. In particular, we predict the quenching of neutrino oscillations and the existence of topological defects, i.e., neutrino solitons, which in our photonic simulator should be observable as excitation of optical gap solitons propagating along the binary arrays at high excitation intensities.

Original languageEnglish
Article number150401
JournalPhysical Review Letters
Issue number15
Publication statusPublished - 7 Oct 2014

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Optical simulation of neutrino oscillations in binary waveguide arrays'. Together they form a unique fingerprint.

Cite this