Coherent transient exciton transport in disordered polaritonic wires
- URL: http://arxiv.org/abs/2311.07940v2
- Date: Thu, 22 Feb 2024 23:11:27 GMT
- Title: Coherent transient exciton transport in disordered polaritonic wires
- Authors: Gustavo J. R. Aroeira, Kyle T. Kairys, Raphael F. Ribeiro
- Abstract summary: We study transient coherent exciton wave packet dynamics on a disordered polaritonic wire.
Under weak and moderate disorder, we find that the early wave packet spread velocity is controlled by the overlap of the initial exciton momentum distribution and its effective group velocity.
Our findings provide guiding principles for optimizing ultrafast coherent exciton transport based on the magnitude of disorder and the polariton dispersion.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Excitation energy transport can be significantly enhanced by strong
light-matter interactions. In the present work, we explore intriguing features
of coherent transient exciton wave packet dynamics on a lossless disordered
polaritonic wire. Our main results can be understood in terms of the effective
exciton group velocity, a new quantity we obtain from the polariton dispersion.
Under weak and moderate disorder, we find that the early wave packet spread
velocity is controlled by the overlap of the initial exciton momentum
distribution and its effective group velocity. Conversely, when disorder is
stronger, the initial state is nearly irrelevant, and red-shifted cavities
support excitons with greater mobility. Our findings provide guiding principles
for optimizing ultrafast coherent exciton transport based on the magnitude of
disorder and the polariton dispersion. The presented perspectives may be
valuable for understanding and designing new polaritonic platforms for enhanced
exciton energy transport.
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