title: Search for exchange-antisymmetric states for spin-0 particles at the 10(-11) level.
abstract: We set a new upper limit of 1.7x10(-11) to the probability that two spin-0 16O nuclei are in forbidden exchange-antisymmetric states, testing the validity of fundamental principles of quantum mechanics. A newly designed difference-frequency spectrometer is used to look for the existence of these states. The experimental test was performed by tuning the spectrometer across a molecular transition of 12C 16O (2) belonging to the rovibrational band at 4.25 microm, connecting the forbidden states (00(0)0,J = 25) and (00(0)1,J = 26).
authors: Instituto Nazionale di Ottica Applicata, Largo E. Fermi, Firenze, Italy.
authors: D
authors: D
authors: Mazzotti
authors: P
authors: P
authors: Cancio
authors: G
authors: G
authors: Giusfredi
authors: M
authors: M
authors: Inguscio
authors: P
authors: P
authors: De Natale