No Violation of Bell-CHSH Inequalities at Large Distances
- URL: http://arxiv.org/abs/2312.07499v1
- Date: Tue, 12 Dec 2023 18:30:58 GMT
- Title: No Violation of Bell-CHSH Inequalities at Large Distances
- Authors: Timofei Rusalev, Daniil Stepanenko and Igor Volovich
- Abstract summary: We show that at large distances there is in fact no violation of the Bell-CHSH inequalities.
We propose an experiment to study the dependence of the quantum correlation function and Bell value on increasing distance between detectors.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The usual derivation of the violation of Bell-type inequalities can be
applied actually only for small distances between detectors. It does not take
into account the dependence of the quantum mechanical wave function on
space-time variables. We study the behavior of entangled photons obtained in
spontaneous parametric down-conversion (SPDC) experiments and show that at
large distances there is in fact no violation of the Bell-CHSH inequalities. We
show that the initial entangled states become disentangled at large space-like
distances. This does not contradict the violation of Bell inequalities observed
at small distances between detectors. We propose an experiment to study the
dependence of the quantum correlation function and Bell value on increasing
distance between detectors. We predict that these quantities decrease inversely
proportional to the increase of the distance between the detectors.
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