Cavity dark mode mediated by atom array without atomic scattering loss

• URL: http://arxiv.org/abs/2410.20044v1
• Date: Sat, 26 Oct 2024 02:27:55 GMT
• Title: Cavity dark mode mediated by atom array without atomic scattering loss
• Authors: Xiaotian Zhang, Zhanhai Yu, Hongrui Zhang, Di Xiang, Hao Zhang,
• Abstract summary: We observe a cavity dark mode, where the standing-wave nodes are dynamically locked to the positions of the atoms. The dark mode is decoupled from the atoms, protecting the system from dissipation through atomic scattering. We impart an arbitrary large phase shift on the converted optical fields by translating the atom array.
• Score: 6.344873011535255
• License:
• Abstract: We realize a ring cavity strongly interacting with an atom array with configurable spatial structures. By preparing the atom array with a maximized structure factor, we observe the emergence of a cavity dark mode, where the standing-wave nodes are dynamically locked to the positions of the atoms. The dark mode is decoupled from the atoms, protecting the system from dissipation through atomic scattering, but still mediates strong coupling and enables efficient conversion between two optical modes. Moreover, we impart an arbitrary large phase shift on the converted optical fields by translating the atom array. This strongly interacting ring cavity system with single-atom addressability opens ways to quantum optical engineering and the generation of photonic quantum states based on the geometrical structure of atom arrays.

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