Optical simulation of neutrino oscillations in binary waveguide arrays

Abstract

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 modelled through coupled-mode equations, which in the continuous limit lead to two coupled Dirac equations for fermionic particles with different mass states, i.e. neutrinos. We demonstrate that neutrino oscillations can be quenched by nonlinear effects, and we predict the existence of neutrino solitons. Incidentally, these phenomena are expected to play an important role in massive supernova stars. Our results pave the way for using binary waveguide arrays as a classical laboratory for predicting exotic effects in particle physics and astrophysics.

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Cited by in corpus (13)

• Quantum Walks as simulators of neutrino oscillations in vacuum and matter
• Dirac equation in 2-dimensional curved spacetime, particle creation, and coupled waveguide arrays
• Dynamics of Dirac solitons in networks
• Linear and nonlinear photonic Jackiw-Rebbi states in waveguide arrays
• Solitary waves in the Nonlinear Dirac Equation
• Flavor vacuum entanglement in boson mixing
• On the flavor/mass dichotomy for mixed neutrinos: a phenomenologically motivated analysis based on lepton charge conservation in neutron decay
• Dynamic diffractive resonant radiation in a linearly chirped nonlinear waveguide array
• Dirac equation on a square waveguide lattice with site-dependent coupling strengths and the gravitational Aharonov-Bohm effect
• Existence, Stability and Dynamics of Discrete Solitary Waves in a Binary Waveguide Array
• Spectral stability of bi-frequency solitary waves in Soler and Dirac--Klein--Gordon models
• A comprehensive study on beam dynamics inside symmetrically chirped waveguide array mimicking the graded index media
• Relativistic Zitterbewegung in non-Hermitian photonic waveguide systems