Polarization-encoded photonic quantum-to-quantum Bernoulli factory based on a quantum dot source
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909350391447552 |
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| author | Rodari, Giovanni Hoch, Francesco Suprano, Alessia Giordani, Taira Negro, Elena Carvacho, Gonzalo Spagnolo, Nicolò Galvão, Ernesto F. Sciarrino, Fabio |
| author_facet | Rodari, Giovanni Hoch, Francesco Suprano, Alessia Giordani, Taira Negro, Elena Carvacho, Gonzalo Spagnolo, Nicolò Galvão, Ernesto F. Sciarrino, Fabio |
| contents | 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. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2410_11685 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Polarization-encoded photonic quantum-to-quantum Bernoulli factory based on a quantum dot source Rodari, Giovanni Hoch, Francesco Suprano, Alessia Giordani, Taira Negro, Elena Carvacho, Gonzalo Spagnolo, Nicolò Galvão, Ernesto F. Sciarrino, Fabio Quantum Physics 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. |
| title | Polarization-encoded photonic quantum-to-quantum Bernoulli factory based on a quantum dot source |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2410.11685 |