Europhys. Lett.
Volume 75, Number 2, July 2006
Page(s) 202 - 208
Section General
Published online 14 June 2006
Europhys. Lett., 75 (2), pp. 202-208 (2006)
DOI: 10.1209/epl/i2005-10600-6

Joint reality and Bell inequalities for consecutive measurements

R. Lapiedra

Department of Astronomy and Astrophysics, University of Valencia 46100 Burjassot (Valencia), Spain

received 21 December 2005; accepted in final form 23 May 2006
published online 14 June 2006

Some new Bell inequalities for consecutive measurements are deduced under joint realism assumption, using some perfect correlation property. No locality condition is needed. When the measured system is a macroscopic system, joint realism assumption substitutes the non-invasive measurability hypothesis advantageously, provided that the system satisfies the perfect correlation property. The new inequalities are violated quantically. This violation can be expected to be more severe than in the case of precedent temporal Bell inequalities. Some microscopic and mesoscopic situations, in which the new inequalities could be tested, are roughly considered.

03.65.Ud - Entanglement and quantum non-locality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.).
03.65.Ta - Foundations of quantum mechanics, measurement theory.

© EDP Sciences 2006