Joint reality and Bell inequalities for consecutive measurements

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

Corresponding author: ramon.lapiedra@uv.es

Received: 21 December 2005
Accepted: 23 May 2006

Abstract

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.