Journal
PHYSICAL REVIEW A
Volume 92, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.92.013832
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Funding
- OAW
- European Research Council [227844, 600645]
- Austrian Science Fund (FWF)
- [SFB F40 (FOQUS)]
- [W1210-2 (CoQus)]
- European Research Council (ERC) [227844] Funding Source: European Research Council (ERC)
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A novel quantum imaging technique has recently been demonstrated in an experiment, where the photon used for illuminating an object is not detected; the image is obtained by interfering two beams, none of which ever interacts with the object. Here we present a detailed theoretical analysis of the experiment. We show that the object information is present only in the interference term and not in the individual intensities of the interfering beams. We also theoretically establish that the magnification of the imaging system depends on two wavelengths: the average wavelength of the photon that illuminates the object and the average wavelength of the photon that is detected. Our analysis affirms that the imaging process is based on the principle that quantum interference occurs when interferometric path information is unavailable.
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