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Two-particle Aharonov-Bohm effect and entanglement in the electronic Hanbury Brown-Twiss setup

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Published in Physical Review Letters. 2004, vol. 92, no. 026805, p. 4
Abstract We analyze a Hanbury Brown-Twiss geometry in which particles are injected from two independent sources into a mesoscopic conductor in the quantum Hall regime. All partial waves end in different reservoirs without generating any single-particle interference; in particular, there is no single-particle Aharonov-Bohm effect. However, exchange effects lead to two-particle Aharonov-Bohm oscillations in the zero-frequency current cross correlations. We demonstrate that this is related to two-particle orbital entanglement, detected via violation of a Bell inequality. The transport is along edge states and only adiabatic quantum point contacts and normal reservoirs are employed.
Keywords Mesoscopic systems and quantum hall effectCondensed matter
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PMID: 14753955
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SAMUELSSON, Martin Peter, SUKHORUKOV, Eugene, BUTTIKER, Markus. Two-particle Aharonov-Bohm effect and entanglement in the electronic Hanbury Brown-Twiss setup. In: Physical Review Letters, 2004, vol. 92, n° 026805, p. 4. https://archive-ouverte.unige.ch/unige:4167

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Deposited on : 2009-11-30

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