3-7 July 2017
Africa/Johannesburg timezone

Theoretical investigation of the Hong-Ou-Mandel interference in turbulence

6 Jul 2017, 11:10
20m
A306 (Engineering Building 51)

A306

Engineering Building 51

Oral Presentation Track C - Photonics Photonics

Speaker

Mr Chemist Mabena (University of the Witwatersrand and CSIR)

Description

The effect of turbulence on the Hong-Ou-Mandel (HOM) is analysed theoretically. The analysis is performed with two types of entangled input states, a Bell state and a spontaneous parametric down converted input state. In this work, two scenarios have been considered. The first scenario is when only one of the entangled photons is sent through the turbulence and the second scenario is when both the entangled photons are sent through turbulence. For the purpose of the calculations, we use a single phase screen approximation of the turbulent medium and a quadratic structure function to approximate the Kolmogorov theory of turbulence. The results show that the visibility of the HOM dip (or peak) is independent of the scintillation strength when only one photon goes through the turbulence for both types of entangled input states. However, in the case when both photons are sent through the turbulence, the visibility of the HOM dip (or peak) is reduced for increasing scintillation strength.

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

Yes

Main supervisor (name and email)<br>and his / her institution

Name: Filippus Roux
email: FRoux@nmisa.org
Institution: School of Physics, University of the Witwatersrand and NMISA

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD, N/A)?

PhD

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

No

Primary author

Mr Chemist Mabena (University of the Witwatersrand and CSIR)

Co-authors

Dr Filippus Roux (University of the Witwatersrand and NMISA) Dr Shashi Prabhakar (University of the Witwatersrand) Prof. Thomas Konrad (UKZN)

Presentation Materials

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