Single photons in an interferometer: Forbidden outcomes

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Abstract

The well-known Hong-Ou-Mandel (HOM) effect is the first demonstration of perfect destructive interference of quantum amplitudes in a linear optical system with single photon Fock-states at input. A natural question to ask is whether we are able to predict similar behavior for systems of a general size, that is, predicting forbidden transitions for a given input state and a given linear optical system. Previous studies have found that certain symmetries between the input and output configuration in combination with a symmetric interferometer will always result into so called suppressions. But recently, a few examples have been found of suppressions which do not obey the suppression laws constructed in previous studies. In this work, we
parametrize a general three-mode interferometer and we use a numerical optimization algorithm in order to find all three-mode interferometers that demonstrate forbidden transitions. These results help us to gain a better understanding of the fundamental reason behind suppressions. In addition, we compare the quality of the different interferometers for applications
in quantum tomography.
Original languageEnglish
Number of pages1
Publication statusPublished - 16 Oct 2023
Event46th Annual Meeting NNV AMO 2023 - Egmond aan Zee, Netherlands
Duration: 10 Oct 202311 Oct 2023
Conference number: 46
https://www.ru.nl/en/about-us/events/46th-annual-meeting-nnv-amo

Conference

Conference46th Annual Meeting NNV AMO 2023
Country/TerritoryNetherlands
CityEgmond aan Zee
Period10/10/2311/10/23
Internet address

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