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An experimental quantum Bernoulli factory.

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 using quantum coherence and single-qubit measurements and the other one using 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 fivefold reduction. These concepts may provide a means for quantum-enhanced performance in the simulation of stochastic processes and sampling tasks.

SUBMITTER: Patel RB

PROVIDER: S-EPMC6357723 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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An experimental quantum Bernoulli factory.

Patel Raj B RB Rudolph Terry T Pryde Geoff J GJ

Science advances 20190125 1

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 using quantum coherence and single-qubit measurements and the other one using quantum coherence and entangling measurements of two qubits. We sh ...[more]

PMID: 30746457

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