Decoherence due to internal mesoscopic environment: a possible experimental test
Department of Physics, Faculty of Science, 34 000
Corresponding author: a email@example.com
Revised: 29 December 2003
Published online: 17 February 2004
Following the fundamentals of the Stern-Gerlach experiment, we propose for an experimental situation eventually revealing the decoherence effect due to the internal mesoscopic environment. The experiment-set-up we propose is a straightforward extension of the set-up recently used in the neutron optics interference experiments. First, we point to and discuss the occurrence of decoherence for the atom's path in the Stern-Gerlach experiment. Then, comparing a Stern-Gerlach apparatus with the apparatus of our set-up-proposal, we point out the occurrence of decoherence and consequently of non-violation of the Bell's inequality for a single atom's degree of freedom due to the environment consisting of the order of 102 particles.
PACS: 03.65.Yz – Decoherence; open systems; quantum statistical methods / 03.75.Dg – Atom and neutron interferometry / 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, 2004