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The direct test of the absence of the "quantum vampire's" shadow with use of thermal light

Counterintuitive nature of quantum physics leads to a number of paradoxes. One of them is a "quantum vampire" effect [1] consisting in the fact, that photon annihilation in a part of a large beam doesn't change the shape of the beam profile (i. e., doesn't cast a shadow), but may change the total beam intensity. Previously this effect was demonstrated just in a simplified double-mode regime [1,2]. In the current paper the direct test of shadow absence after the photon annihilation has been performed with use of thermal state of light at the input.

preprint2019arXivOpen access
K. G. KatamadzeE. V. KovlakovG. V. AvosopiantsS. P. Kulik
physics.opticsquant-ph
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K. G. KatamadzeE. V. KovlakovG. V. AvosopiantsS. P. Kulik

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