Proposal to test a transient deviation from Quantum Mechanics? predictions for Bell?s experiment

A. HNILO; M. AGUERO; M. KOVALSKY

ENTROPY

MOLECULAR DIVERSITY PRESERVATION INTERNATIONAL-MDPI

Lugar: Basel; Año: 2021

1099-4300

Quantum Mechanics predicts correlations between measurements performed in distant regions of a spatially spread entangled state tobe higher than allowed by intuitive concepts of Locality and Realism. These high correlations forbid the use of nonlinear operators ofevolution (which would be desirable for several reasons), for they may allow faster-than-light signaling. As a way out of thissituation, it has been hypothesized that the high quantum correlations develop only after a time longer than L/c has elapsed (where Lis the spread of the entangled state and c is the velocity of light). In shorter times, correlations compatible with Locality and Realismwould be observed instead. A simple hidden variables model following this idea is described. It is inspired on a modified Wheeler-Feynman theory of radiation. It has not been disproved by any of the experiments performed to date. Perhaps surprisingly, thetransient variation appears in the value of the detection efficiency (coincidences/singles), not in the correlation. A test achievablewith accessible means is proposed and described. It involves a pulsed source of entangled states and stroboscopic record of particledetection during the pulses. Data recorded in similar but incomplete optical experiments are analyzed, and found consistent with theproposed model. But it is not claimed, in any sense, that the model has been validated. On the contrary, it is stressed that a complete,specific test is absolutely needed.