Three criteria for quantum random number generators based on beam splitters

TL;DR

This paper establishes three criteria for quantum random number generators using beam splitters, emphasizing the importance of high-dimensional outcomes, pure states, and entanglement to ensure true randomness and eliminate bias.

Contribution

It introduces a set of three specific criteria that improve the reliability and quality of quantum random number generation based on beam splitter experiments.

Findings

Three criteria for quantum randomness from beam splitters

Use of high-dimensional outcomes for better randomness

Entanglement eliminates bias in generated strings

Abstract

We propose three criteria for the generation of random digital strings from quantum beam splitters: (i) three or more mutually exclusive outcomes corresponding to the invocation of three- and higher dimensional Hilbert spaces; (ii) the mandatory use of pure states in conjugated bases for preparation and detection; and (iii) the use of entangled singlet (unique) states for elimination of bias.