9-13 July 2012
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=11&confId=14"><font color=#ff0000>SAIP2012 PROCEEDINGS AVAILABLE</font></a>

High-dimensional Entanglement

12 Jul 2012, 14:30
Oral Presentation Track C - Photonics Photonics


Ms Melanie McLaren (CSIR)

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Abstract content <br> &nbsp; (Max 300 words)

High-dimensional entanglement of quantum systems offers greater possibilities to a number of applications, such as loophole-free tests of nonlocality and new quantum information schemes. We demonstrate the tomographic reconstruction of the high-dimensional quantum states of photon pairs entangled in the orbital angular momentum basis, by providing a full characterisation, in the form of a density matrix, of the entangled states. The density matrices were determined for the entangled two-qudit state, where the dimensions ranged from 2 to 8, limited only by the number of data points and the length of time required. We show that all recorded states have high fidelities and linear entropies required for a violation of the appropriate high-dimensional Bell inequality. This demonstrates a characterisation of the nature of the entanglement, allowing for possibly applications in quantum information science.

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

Prof. Andrew Forbes, aforbes1@csir.co.za, CSIR

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Primary author


Prof. Andrew Forbes (CSIR) Dr F.S. Roux (CSIR) Dr Jonathan Leach (University of Ottawa) Ms Megan Agnew (University of Ottawa) Prof. Robert Boyd (University of Ottawa, University of Rochester)

Presentation Materials

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