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DOE OSTI · 1515584

Quantum phase-sensitive diffraction and imaging using entangled photons

Asban, Shahaf·Dorfman, Konstantin E.·Mukamel, Shaul (ORCID:0000000260153135)
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Abstract

We propose a quantum diffraction imaging technique whereby one photon of an entangled pair is diffracted off a sample and detected in coincidence with its twin. The image is obtained by scanning the photon that did not interact with matter. We show that when a dynamical quantum system interacts with an external field, the phase information is imprinted in the state of the field in a detectable way. The contribution to the signal from photons that interact with the sample scales as ∝ I p 1 / 2 , where I p is the source intensity, compared with ∝ I p of classical diffraction. This makes imaging with weak fields possible, providing high signal-to-noise ratio, avoiding damage to delicate samples. A Schmidt decomposition of the state of the field can be used for image enhancement by reweighting the Schmidt modes contributions.

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71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICSentangled protonsphase-sensitive imagingquantum diffractionquantum imaging

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Asban, Shahaf, Dorfman, Konstantin E., Mukamel, Shaul (ORCID:0000000260153135). 2019-05-23. Quantum phase-sensitive diffraction and imaging using entangled photons. https://doi.org/10.1073/pnas.1904839116

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