Detection model based on representation of quantum particles by classical random fields: Born's rule and beyond

TL;DR

This paper discusses a prequantum classical statistical field theory predicting potential violations of Born's rule, supported by preliminary experimental evidence, and develops a detection model where quantum probabilities emerge approximately from classical random fields.

Contribution

It introduces a detection model within PCSFT that explains quantum probabilities as approximate outcomes of classical random field interactions, suggesting possible violations of Born's rule.

Findings

Preliminary experimental evidence supports violation of Born's rule.

The detection model shows quantum probabilities arise approximately from classical fields.

Proposes new experimental tests for Born's rule violation.

Abstract

Recently a new attempt to go beyond quantum mechanics (QM) was presented in the form of so called prequantum classical statistical field theory (PCSFT). Its main experimental prediction is violation of Born's rule which provides only an approximative description of real probabilities. We expect that it will be possible to design numerous experiments demonstrating violation of Born's rule. Moreover, recently the first experimental evidence of violation was found in the triple slits interference experiment, see \cite{WWW}. Although this experimental test was motivated by another prequantum model, it can be definitely considered as at least preliminary confirmation of the main prediction of PCSFT. In our approach quantum particles are just symbolic representations of "prequantum random fields," e.g., "electron-field" or "neutron-field"; photon is associated with classical random electromagnetic field. Such prequantum fields fluctuate on time and space scales which are essentially finer than scales of QM, cf. `t Hooft's attempt to go beyond QM \cite{H1}--\cite{TH2}. In this paper we elaborate a detection model in the PCSFT-framework. In this model classical random fields (corresponding to "quantum particles") interact with detectors inducing probabilities which match with Born's rule only approximately. Thus QM arises from PCSFT as an approximative theory. New tests of violation of Born's rule are proposed.