2005
DOI: 10.1103/physreva.72.013810
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Resolution of quantum and classical ghost imaging

Abstract: The quantum ghost imaging phenomena, experimentally demonstrated a decade ago, exploited the apparent spooky action at a distance of entangled photon pairs and offered a novel approach toward imaging. Can ghost imaging effects be produced by "classical" light sources, such as separable systems of photon pairs or thermal light? If so, can these sources achieve the same accuracy achieved by entangled states? In order to answer these questions, we formulate the different physics behind entangled and separable sys… Show more

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Cited by 96 publications
(78 citation statements)
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“…This disparity has sparked interest [7,8,9,10] in establishing a unifying theory that characterizes the fundamental physics of ghost imaging and delineates the boundary between classical and quantum behavior. In this paper we develop that unifying theory within the framework of Gaussianstate (classical and nonclassical) sources.…”
Section: Introductionmentioning
confidence: 99%
“…This disparity has sparked interest [7,8,9,10] in establishing a unifying theory that characterizes the fundamental physics of ghost imaging and delineates the boundary between classical and quantum behavior. In this paper we develop that unifying theory within the framework of Gaussianstate (classical and nonclassical) sources.…”
Section: Introductionmentioning
confidence: 99%
“…This difference is quantitatively formulated in terms of a set of inequalities derived from the historical argument of Einstein, Podolsky, and Rosen [21]. We show that two-photon Figure 1 (online color at www.lphys.org) a) A lens produces the stigmatic image of an object in the plane defined by the Gaussian thin lens equation 1/si + 1/so = 1/f .…”
Section: Introductionmentioning
confidence: 99%
“…For the ghost imaging measurement, the measurement setup includes a narrow vertical slit of 0.4 mm in width, which defines the imaging resolution, the objective lens l g (f g = 13.5 mm, NA=0.25), and a SMF. The whole setup is mounted on a translation stage and scanned.It is well-known that a pair of classically-correlated photons in their positions and in their momenta can lead to ghost imaging and ghost interference, respectively [41][42][43][44]. It is, however, fundamentally impossible to observe both ghost imaging and ghost interference with a classical position-correlated or momentum-correlated photon pairs [41,42].…”
mentioning
confidence: 99%
“…It is, however, fundamentally impossible to observe both ghost imaging and ghost interference with a classical position-correlated or momentum-correlated photon pairs [41,42]. On the other hand, if a photon pair is EPR entangled, i.e., quantum correlation exits simultaneously in positions and momenta of the photons, both ghost imaging and ghost interference may be observed by choosing the appropriate measurement basis [14,15].…”
mentioning
confidence: 99%