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arXiv · 2504.13830

Nonlocal Coherent Optical Nonlinearities of a Macroscopic Quantum System

Albert Liu·Eric W. Martin·Jiaqi Hu·Zhaorong Wang·Hui Deng·Steven T. Cundiff
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Abstract

The optical responses of solids are typically understood to be local in space. Whether locality holds for the optical response of a macroscopic quantum system has, however, been largely unexplored. Here, we use multidimensional coherent spectroscopy at the optical diffraction limit to demonstrate nonlocal optical nonlinearities in a semiconductor microcavity. These nonlocal optical responses are both coherent and quantum in nature, deriving from the macroscopic length scale of confined exciton-polariton wavefunctions.

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Albert Liu, Eric W. Martin, Jiaqi Hu, Zhaorong Wang, Hui Deng, Steven T. Cundiff. 2025-04-18. Nonlocal Coherent Optical Nonlinearities of a Macroscopic Quantum System. https://arxiv.org/abs/2504.13830

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