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Counterfactual Ghost Imaging

Lookup NU author(s): Dr Jonte HanceORCiD

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

We give a protocol for ghost imaging in a way that is always counterfactual—while imaging an object, no light interacts with that object. This extends the idea of counterfactuality beyond communication, showing how this interesting phenomenon can be leveraged for metrology. Given, in the infinite limit, no photons ever go to the imaged object, it presents a method of imaging even the most light-sensitive of objects without damaging them. Even when not in the infinite limit, it still provides a many-fold improvement in visibility and signal-to-noise ratio over previous protocols, with over an order of magnitude reduction in absorbed intensity.

Publication metadata

Author(s): Hance JR, Rarity J

Publication type: Article

Publication status: Published

Journal: npj Quantum Information

Year: 2021

Volume: 7

Print publication date: 02/06/2021

Acceptance date: 01/04/2021

Date deposited: 08/04/2024

ISSN (electronic): 2056-6387

Publisher: Nature Publishing Group

URL: https://doi.org/10.1038/s41534-021-00411-4

DOI: 10.1038/s41534-021-00411-4

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