Electronic Hong-Ou-Mandel interferometer for multimode entanglement detection
- 20 September 2006
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 74 (11), 115315
- https://doi.org/10.1103/physrevb.74.115315
Abstract
We show that multimode entanglement of electrons in a mesoscopic conductor can be detected by a measurement of the zero-frequency current correlations in an electronic Hong-Ou-Mandel interferometer. By this means, one can further establish a lower bound to the entanglement of formation of two-electron input states. Our results extend the work of Burkard and Loss [Phys. Rev. Lett. 91, 087903 (2003)] to many channels and provide a way to test the existence of entangled states involving both orbital and spin degrees of freedom.Keywords
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