Photonic Bloch oscillations of correlated particles

TL;DR

This paper proposes a theoretical photonic system to observe Bloch oscillations of two correlated particles, demonstrating how particle interactions induce observable effects like frequency doubling in a waveguide array.

Contribution

It introduces a novel photonic setup to simulate correlated electron dynamics and predicts observable signatures of interactions in optical Bloch oscillations.

Findings

Correlation-induced frequency doubling of BOs

Visualization of correlated particle dynamics via optical paths

Theoretical model linking particle interactions to optical signatures

Abstract

A photonic realization of Bloch oscillations (BOs) of two correlated electrons that move on a one-dimensional periodic lattice, based on spatial light transport in a square waveguide array with a defect line, is theoretically proposed. The signature of correlated BOs, such as frequency doubling of the oscillation frequency induced by particle interaction, can be simply visualized by monitoring the spatial path followed by an optical beam that excites the array near the defect line.