# Entanglement g-2-experiment - Which components do I need?

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I would like to measure whether my source emits entangled photon pairs. To that order I want to build a g-2-experiment, which measures photon coincidence counts as a function of time delay between photon detection. Unfortunately, there is no one here who can show me how. Are there any books or papers that specify what components I need and why? I imagine that it must be much more complicated than hooking up two detectors to my source via fiber optics, right? Also any hints at how to approach such a setup would be much appreciated. (I'm a first year grad student with next to no supervision) Thank you! :)

This post imported from StackExchange Physics at 2015-11-09 12:01 (UTC), posted by SE-user photongirl

asked Sep 18, 2014
edited Nov 9, 2015
It is true that it's difficult to find descriptions regarding basic experimental setup and tuning in quantum optics papers in general. Papers that describe their setups for doing more advanced experiments never go through the detailed steps required for alignment or where/how to purchase the right stuff. It is of course implicitly assumed that whoever is reading those things work in the field and know the basics :) I do think it might be easiest to discuss in person with someone at a local physics lab.

This post imported from StackExchange Physics at 2015-11-09 12:01 (UTC), posted by SE-user BjornW

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You may learn from well described EPR Bell experiments like this one from A. Zeilinger

There are 3 documents, the main one describes the apparatus, the second gives more details on the calculus ( it is on the right at Ancillary files ) and the 3rd is the big file of the recorded datas. You must write to the authors to get the latter.

It is considered as the finest experiment. You can get inspired to create your own reduced device and adjust your analysis methods for a yes / no answer to your main question, that is different from the EPR one.

Indeed, you will not be interested by the hidden variables evidence but by the correlations themselves at 0 and 90°. So you may conclude that you need something very light. But you will face difficulties and learn a lot from these documents.

answered Aug 6, 2016 by (360 points)

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