Response to “The physics of ghost imaging—nonlocal interference or local intensity fluctuation correlation?”

Response to “The physics of ghost imaging—nonlocal interference or local intensity... Quantum Inf Process (2012) 11:1003–1011 DOI 10.1007/s11128-012-0399-2 Response to “The physics of ghost imaging—nonlocal interference or local intensity fluctuation correlation?” Jeffrey H. Shapiro · Robert W. Boyd Received: 9 March 2012 / Accepted: 15 March 2012 / Published online: 25 March 2012 © Springer Science+Business Media, LLC 2012 Shih has objected to the semiclassical explanation for lensless pseudothermal ghost imaging—whose measurement configuration is shown schematically in Fig. 8 of [1]—that is reviewed by Shapiro and Boyd. In Shih’s view, the only valid expla- nation for lensless pseudothermal ghost imaging is nonlocal two-photon interference, i.e., a purely quantum phenomenon. Shapiro and Boyd also develop that explana- tion for the lensless pseudothermal ghost image, where they show it to be equivalent, in its quantitative predictions, to the speckle-correlation interpretation arising from semiclassical photodetection theory. Thus, Sect. 1 of [1] concludes: “That the semi- classical and quantum theories yield identical measurements statistics in this case means that pseudothermal ghost-imaging experiments cannot distinguish between these two interpretations, even though we know that light is intrinsically quantum mechanical.” Shih begins by observing that Shapiro and Boyd fail to compare lensless pseudo- thermal ghost imaging of Scarcelli et al. [2], with the lens-based pseudothermal ghost Quantum Information Processing Springer Journals

Response to “The physics of ghost imaging—nonlocal interference or local intensity fluctuation correlation?”

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Springer US
Copyright © 2012 by Springer Science+Business Media, LLC
Physics; Mathematical Physics; Quantum Computing; Quantum Information Technology, Spintronics; Data Structures, Cryptology and Information Theory; Quantum Physics
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