https://doi.org/10.1140/epjd/e2005-00234-2
On the observability of Bell's inequality violation in the two-atoms optical Stern-Gerlach model
1
Istituto Nazionale di Fisica della Materia and
Dipartimento di Fisica e Tecnologie Relative, Università degli Studi di Palermo,
Viale delle Scienze, 90128 Palermo, Italy
2
Istituto Nazionale di Fisica della Materia and Dipartimento di Scienze Fisiche ed Astronomiche, Università
degli Studi di Palermo, via Archirafi 36, 90123 Palermo, Italy
Corresponding author: a tumminello@lagash.dft.unipa.it
Received:
9
February
2005
Revised:
14
June
2005
Published online:
23
August
2005
Using the optical Stern-Gerlach model, we have recently shown that the non-local correlations between the internal variables of two atoms that successively interact with the field of an ideal cavity in proximity of a nodal region are affected by the atomic translational dynamics. As a consequence, there can be some difficulties in observing violation of the Bell's inequality for the atomic internal variables. These difficulties persist even if the atoms travel an antinodal region, except when the spatial wave packets are exactly centered in an antinodal point.
PACS: 42.50.-p – Quantum optics / 32.80.Lg – Mechanical effects of light on atoms, molecules, and ions / 03.65.Ud – Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.)
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005