Zitterbewegung of exciton-polaritons
E. S. Sedov, Y. G. Rubo, and A. V. Kavokin
TL;DR
This paper predicts and analyzes the zitterbewegung oscillations of exciton-polaritons in microcavities, showing how they can be controlled and optimized for experimental observation.
Contribution
It provides a theoretical framework and numerical analysis for observing zitterbewegung in exciton-polaritons, including control parameter optimization.
Findings
Oscillatory trajectories of polaritons depend on mode splitting, wave vector, and pump width.
Control parameters can be tuned for experimental detection.
Theoretical and numerical methods support experimental feasibility.
Abstract
Macroscopic wave packets of spin-polarized exciton-polaritons in two-dimensional microcavities experience the zitterbewegung, the effect manifested by the appearance of the oscillatory motion of polaritons in the direction normal to the initial propagation direction. The oscillating trajectories of exciton-polaritons are adjustable by the control parameters: the splitting of the longitudinal and transverse exciton-polariton modes, the wave vector and the width of the resonant cw pump. Our theoretical analysis supported by the numerical calculations allowed to optimize values of the control parameters suitable for a direct experimental observation of the zitterbewegung effect.
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