Time resolved measurements of the Bell´s inequalities and the coincidence loophole

M AGUERO; A HNILO; M. KOVALSKY

PHYSICAL REVIEW A - ATOMIC, MOLECULAR AND OPTICAL PHYSICS

AMER PHYSICAL SOC

Lugar: New York; Año: 2012 vol. 86 p. 1 - 18

1050-2947

We report an EPRB experiment with a pulsed source of entangled pairs of photons, recordingthe time of arrival of the pulses and of the detection of each single photon. This allows varying theparameters of the analysis (as the size of the time coincidence window) at will after the experimenthas ended. Among other results, we present the measurement of the time variation of the CHSHparameter during the pulse. The obtained results close (or, at least, impose new and tight restrictionsto) the last loophole that remains open in the tests of Quantum Mechanics vs Local Realism (theso-called ?coincidence-loophole?).