Photonic Lattice of Coupled Microcavities in Nonpermanent Gravitational Field Produced by Rotation

TL;DR

This paper predicts rotation-induced splitting of photonic bands in a 2D microcavity lattice, revealing effects similar to Zeeman splitting and suggesting potential for generating high-frequency gravitational waves through quantum transitions.

Contribution

It introduces the concept of rotation-induced photonic band splitting in a coupled microcavity lattice and explores its implications for quantum transitions and gravitational wave generation.

Findings

Rotation causes splitting of photonic bands in the lattice.

Orbital photon motion enhances the splitting compared to single microcavities.

Rotation-induced quantum transitions may generate high-frequency gravitational waves.

Abstract

Rotation-induced splitting of the otherwise degenerate photonic bands is predicted for a two-dimensional photonic crystal made of evanescently coupled microcavities. The symmetry-broken energy splitting is similar to the Zeeman splitting of atomic levels or electron's (hole's) magnetic moment sublevels in an external magnetic field. The orbital motion of photons in periodic photonic lattice of microcavities is shown to enhance significantly such Coriolis-Zeeman splitting as compared to a solitary microcavity [D.L. Boiko, Optics Express 2, 397 (1998)]. The equation of motion suggests that nonstationary rotation induces quantum transitions between photonic states and, furthermore, that such transitions might generate high-frequency gravitational waves.