Search for exchange-antisymmetric two-photon states

Authors
DeMille, D Budker, D Derr, N Deveney, E
Citation
D. Demille et al., Search for exchange-antisymmetric two-photon states, PHYS REV L, 83(20), 1999, pp. 3978-3981
Citations number
24
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
83
Issue
20
Year of publication
1999
Pages
3978 - 3981
Database
ISI
SICI code
0031-9007(19991115)83:20<3978:SFETS>2.0.ZU;2-W
Abstract
Atomic two-photon J = 0 <-> J' = 1 transitions are forbidden for photons of the same energy. This selection rule is related to the fact that photons o bey Bose-Einstein statistics. We hare searched for small violations of this selection rule by studying transitions in atomic Ba. We set a limit on the probability nu that photons are in exchange-antisymmetric states: nu = 1.2 < x 10(-7).