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Entangled Hanbury Brown Twiss effects with edge states

Published in Physica. E, Low-dimensional systems and nanostructures. 2003, vol. 20, no. 1-2, p. 33-42
Abstract Electronic Hanbury Brown Twiss correlations are discussed for geometries in which transport is along adiabatically guided edge channels. We briefly discuss partition noise experiments and discuss the effect of inelastic scattering and dephasing on current correlations. We then consider a two-source Hanbury Brown Twiss experiment which demonstrates strikingly that even in geometries without an Aharonov-Bohm effect in the conductance matrix (second-order interference), correlation functions can (due to fourth-order interference) be sensitive to a flux. Interestingly we find that this fourth-order interference effect is closely related to orbital entanglement. The entanglement can be detected via violation of a Bell Inequality in this geometry even so particles emanate from uncorrelated sources.
Keywords Mesoscopic systems and quantum hall effectCondensed matterHanbury Brown TwissShot noiseEntanglementBell inequality
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BUTTIKER, Markus, SAMUELSSON, Martin Peter, SUKHORUKOV, Eugene. Entangled Hanbury Brown Twiss effects with edge states. In: Physica E: Low-dimensional Systems and Nanostructures, 2003, vol. 20, n° 1-2, p. 33-42. doi: 10.1016/j.physe.2003.09.019 https://archive-ouverte.unige.ch/unige:4236

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Deposited on : 2009-11-30

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