Polarization-encoded photonic quantum-to-quantum Bernoulli factory based on a quantum dot source
arXiv:2410.11685 · doi:10.1126/sciadv.ado6244
Abstract
A Bernoulli factory is a randomness manipulation routine that takes as input a Bernoulli random variable, outputting another Bernoulli variable whose bias is a function of the input bias. Recently proposed quantum-to-quantum Bernoulli factory schemes encode both input and output variables in qubit amplitudes. This primitive could be used as a sub-routine for more complex quantum algorithms involving Bayesian inference and Monte Carlo methods. Here, we report an experimental implementation of a polarization-encoded photonic quantum-to-quantum Bernoulli factory. We present and test three interferometric set-ups implementing the basic operations of an algebraic field (inversion, multiplication, and addition) which, chained together, allow for the implementation of a generic quantum-to-quantum Bernoulli factory. These in-bulk schemes are validated using a quantum dot-based single-photon source featuring high brightness and indistinguishability, paired with a time-to-spatial demultiplexing setup to prepare input resources of up to three single-photon states.
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Cited by in corpus (4)
- Semi-device independent characterization of multiphoton indistinguishability
- Quantum interferences and gates with emitter-based coherent photon sources
- Observation of Lie algebraic invariants in Quantum Linear Optics
- Complexity and multi-functional variants of the Quantum-to-Quantum Bernoulli Factories