Abstract
Coincidence detection of photon pairs produced in parametric fluorescence, in conjunction with a Michelson interferometer in which one member of each pair acquired a geometrical phase due to a cycle in polarization states, has allowed the first observation of Berrys phase at the single-photon level. We have verified that each interfering photon was essentially in an n=1 Fock state, by means of a beam splitter following the interferometer combined with a triple-coincidence technique. The results can be interpreted in terms of a nonlocal collapse of the wave function.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 588-591 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 66 |
| Issue number | 5 |
| DOIs | |
| State | Published - 1991 |
| Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)