Generalised Hong-Ou-Mandel Experiments with Bosons and Fermions

Details Generalised Hong-Ou-Mandel Experiments with Bosons and Fermions Generalised Hong-Ou-Mandel Experiments with Bosons and Fermions

2005-05-06

arxiv.org/abs/quant-ph/0505034v3

New J. Phys. 7, 155 (2005)

Physics

Quantum Physics

11 pages, 2 figures, more references added

Scientific paper

10.1088/1367-2630/7/1/155

The Hong-Ou-Mandel (HOM) dip plays an important role in recent linear optics experiments. It is crucial for quantum computing with photons and can be used to characterise the quality of single photon sources and linear optics setups. In this paper, we consider generalised HOM experiments with $N$ bosons or fermions passing simultaneously through a symmetric Bell multiport beam splitter. It is shown that for even numbers of bosons, the HOM dip occurs naturally in the coincidence detection in the output ports. In contrast, fermions always leave the setup separately exhibiting perfect coincidence detection. Our results can be used to verify or employ the quantum statistics of particles experimentally.

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