Spatial correlations in parametric down-conversion

By Stephen P. Walborn, C. Monken, S. P'adua, P. H. Ribeiro. 2010

363 citations recorded by the source corpus.

Abstract The transverse spatial effects observed in photon pairs produced by parametric down-conversion provide a robust and fertile testing ground for studies of quantum mechanics, non-classical states of light, correlated imaging and quantum information. Over the last 20 years there has been much progress in this area, ranging from technical advances and applications such as quantum imaging to investigations of fundamental aspects of quantum physics such as complementarity relations, Bell’s inequality violation and entanglement. The field has grown immensely: a quick search shows that there are hundreds of papers published in this field, some with hundreds of citations. The objective of this article is to review the building blocks and major theoretical and experimental advances in the field, along with some possible technical applications and connections to other research areas.

Subfields: Acoustics and Ultrasonics, Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/e4becdab974414d765ab27ddb874a6609b65a917

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In Acoustics and Ultrasonics

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Citations in the corpus

Nonlinear optical signals and spectroscopy with quantum light (2016, background): “The created photon pairs are entangled in their frequency, position and momentum degree of freedom (Walborn et al., 2010).”
EPR-based ghost imaging using a single-photon-sensitive camera (2012, background): “The phase matching function, γ , can be described by a sinc function [36] and under certain conditions is approximated by a Gaussian function [36, 37].”
Imaging with a small number of photons (2014, background): “The SPDC process provides an easily manipulated source of photon pairs with strong correlations in the spatial degrees of freedom of the photons [4].”
Quantum technology for military applications (2021, background): “Low-SNR quantum imaging could help in target detection, classification and identification with low signal-to-noise ratios or concealed visible signatures and potentially counter adversaries’ camouflage or other target-deception techniques.”
Introduction to the transverse spatial correlations in spontaneous parametric down-conversion through the biphoton birth zone (2015, methodology): “…representative of the scope of research are: (Bennink et al 2004, Howell et al 2004, Ali Khan and Howell 2006, Barreiro et al 2008, Reid et al 2009, Walborn et al 2010, 2011, Tasca et al 2011, Brougham and Barnett 2012, Edgar et al 2012, Leach et al 2012, Moreau et al 2012, Howland and Howell…”