Entangled quantum-key-distribution randomness

Demonstrating quantum random with single photons

“…The exact overlap of the two cones and its limitation to irises behaves sensitively to beam displacement. Despite this technical limitation, the number of tests passed with entangled photons is comparable to recent research results [19].…”

“…All our quantum random experiments are available as interactive screen experiments [18] on our website 3 and may be used in high school and undergraduate lessons. The quantum random generators are very similar to modern research experiments [14,19] and yield comparable results.…”

Introduction

“…One emergent example in this field is the generation of verifiable random numbers [18][19][20]. Of the many strange properties of quantum mechanics, those relating to the so-called coherent quantum effects take the widest departure from our daily (macroscopic) experience: the possibility for physical objects to appear to simultaneously hold mutually exclusive properties is a confounding fact of the natural world.…”

“…Currently there are intense efforts to close the remaining loopholes in such experiments, and this requires pushing the performance of single-photon devices to unprecedented levels [84][85][86][87][88]. Related to this are the emerging efforts to use the non-local realism of quantum mechanics and its indeterminism as a source of certifiable randomness [18][19][20], which may enable a whole new array of security related applications [90][91][92][93][94]. Related to this are the emerging efforts to use the non-local realism of quantum mechanics and its indeterminism as a source of certifiable randomness [18][19][20], which may enable a whole new array of security related applications [90][91][92][93][94].…”

Search for patterns in sequences of single-photon polarization measurements

“…This unpredictability is also fundamental to quantum mechanics. For both of these reasons, experimental tests of quantum randomness have been performed on bit sequences derived from radioactive decays [3][4][5], from atomic fluorescence [6], and from single-photon detection times [7][8][9][10][11] or polarizations [12][13][14][15], or both [16].…”