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Chapter One: Photon sources and their applications in quantum science and technologies

Urbasi Sinha*; Saumya Ranjan Behera; Mehak Layal Light and Matter Physics group, Raman Research Institute, Bengaluru, Karnataka, India^* Corresponding author: email address: usinha@rri.res.in

Abstract

Single and entangled photons are ubiquitous workhorses for several quantum science and technology applications. Moreover, a photonic platform is a natural choice for testing foundational aspects of quantum mechanics. Most seminal experiments in quantum mechanics, including the work that led to the 2022 Nobel prize in Physics, have been done using photons (Aspect, Grangier,& Roger, 1981, 1982; Bouwmeester et al., 1997; Clauser & Shimony, 1978; Freedman & ...

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