Abstract
Spatial interference of quantum mechanical particles exhibits a fundamental feature of quantum mechanics. A two-mode entangled state of N particles known as N00N state can give rise to non-classical interference. We report the first experimental observation of a three-photon N00N state exhibiting Young's double-slit type spatial quantum interference. Compared to a single-photon state, the three-photon entangled state generates interference fringes that are three times denser. Moreover, its interference visibility of 0.49 ± 0.09 is well above the limit of 0.1 for spatial super-resolution of classical origin.
| Original language | English |
|---|---|
| Pages (from-to) | 24957-24966 |
| Number of pages | 10 |
| Journal | Optics Express |
| Volume | 19 |
| Issue number | 25 |
| DOIs | |
| State | Published - 5 Dec 2011 |