An experimental quantum Bernoulli factory
File(s)eaau6668.full.pdf (2.23 MB)
Published version
Author(s)
Patel, Raj B
Rudolph, Terry
Pryde, Geoff J
Type
Journal Article
Abstract
There has been a concerted effort to identify problems computable with quantum technology which are intractable with classical technology or require far fewer resources to compute. Recently, randomness processing in a Bernoulli factory has been identified as one such task. Here, we report two quantum photonic implementations of a Bernoulli factory, one utilising quantum coherence and single-qubit measurements and the other which uses quantum coherence and entangling measurements of two qubits. We show that the former consumes three orders of magnitude fewer resources than the best known classical method, while entanglement offers a further five-fold reduction. These concepts may provide a means for quantum enhanced-performance in the simulation of stochastic processes and sampling tasks.
Date Issued
2019-01-25
Date Acceptance
2018-12-11
Citation
Science Advances, 2019, 5 (1), pp.1-6
ISSN
2375-2548
Publisher
American Association for the Advancement of Science
Start Page
1
End Page
6
Journal / Book Title
Science Advances
Volume
5
Issue
1
Copyright Statement
© 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY) (http://creativecommons.org/licenses/by/4.0/).
Sponsor
Engineering & Physical Science Research Council (E
Identifier
https://advances.sciencemag.org/content/5/1/eaau6668
Grant Number
EP/L024020/1
Subjects
quant-ph
quant-ph
Notes
7 pages, 5 figures, and 4 pages of supplementary material
Publication Status
Published
Date Publish Online
2019-01-25