Imperial College London


Faculty of Natural SciencesDepartment of Physics

Professor of Quantum Physics



+44 (0)20 7594 7863t.rudolph Website




Blackett LaboratorySouth Kensington Campus






BibTex format

author = {Patel, RB and Rudolph, T and Pryde, GJ},
doi = {10.1126/sciadv.aau6668},
journal = {Science Advances},
pages = {1--6},
title = {An experimental quantum Bernoulli factory},
url = {},
volume = {5},
year = {2019}

RIS format (EndNote, RefMan)

AB - 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.
AU - Patel,RB
AU - Rudolph,T
AU - Pryde,GJ
DO - 10.1126/sciadv.aau6668
EP - 6
PY - 2019///
SN - 2375-2548
SP - 1
TI - An experimental quantum Bernoulli factory
T2 - Science Advances
UR -
UR -
UR -
VL - 5
ER -