Many-particle interference beyond many-boson and many-fermion statistics
| Autor: | Tichy, Malte C., Tiersch, Markus, Mintert, Florian, Buchleitner, Andreas |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | New J. Phys. 14 093015 (2012) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/1367-2630/14/9/093015 |
| Popis: | Identical particles exhibit correlations even in the absence of inter-particle interaction, due to the exchange (anti)symmetry of the many-particle wavefunction. Two fermions obey the Pauli principle and anti-bunch, whereas two bosons favor bunched, doubly occupied states. Here, we show that the collective interference of three or more particles leads to a much more diverse behavior than expected from the boson-fermion dichotomy known from quantum statistical mechanics. The emerging complexity of many-particle interference is tamed by a simple law for the strict suppression of events in the Bell multiport beam splitter. The law shows that counting events are governed by widely species-independent interference, such that bosons and fermions can even exhibit identical interference signatures, while their statistical character remains subordinate. Recent progress in the preparation of tailored many-particle states of bosonic and fermionic atoms promises experimental verification and applications in novel many-particle interferometers. Comment: 12 pages, 5 figures |
| Databáze: | arXiv |
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