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Sensing with quantum light: a perspective

  • 1Department of Physics, University of Warwick, Coventry, CV4 7AL, UK.
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June 5, 2025

Abstract

I present my perspective on sensing with quantum light. I summarise the motivations and methodology for identifying quantum enhancements in sensing over a classical sensor. In the real world, this enhancement will be a constant factor and not increase with the size of the quantum probe as is often advertised. I use a limited survey of interferometry, microscopy and spectroscopy to extract the vital challenges that must be faced to realise tangible enhancements in sensing with quantum light.

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