Title:	Classical light analogue of the non-local Aharonov-Bohm effect
Authors:	Satapathy, Nandan Pandey, Deepak Mehta, Poonam Sinha, Supurna Samuel, J. Ramachandran, Hema
Issue Date:	Mar-2012
Publisher:	EPL Association
Citation:	Europhysics Letters, 2012, Vol.97, p.50011
Abstract:	We demonstrate the existence of a non-local geometric phase in the intensity-intensity correlations of classical incoherent light, that is not seen in the lower-order correlations. This two-photon Pancharatnam phase was observed and modulated in a Mach-Zehnder interferometer. Using acousto-optic interaction, independent phase noise was introduced to light in the two arms of the interferometer to create two independent incoherent classical sources from laser light. The experiment is the classical optical analogue of the multi-particle Aharonov-Bohm effect. As the trajectory of light over the Poincaré sphere introduces a phase shift observable only in the intensity-intensity correlation, it provides a means of deflecting the two-photon wavefront, while having no effect on single photons.
Description:	Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
URI:	http://hdl.handle.net/2289/4377
ISSN:	0295-5075 1286-4854 (Online).
Alternative Location:	http://arxiv.org/abs/1202.2685 http://dx.doi.org/10.1209/0295-5075/97/50011
Copyright:	2012 EPLA
Appears in Collections:	Research Papers (TP)

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