Two-Photon Optical Boolean Processor
Abstract We propose an experimental scheme that realizes several Boolean operations nonlocally and simultaneously by exploiting the transverse spatial degrees of freedom (TSDF) of photon pairs generated via spontaneous parametric down-conversion (SPDC). Binary information is encoded as matrices in the TSDF using Digital Micromirror Devices (DMDs) placed in the signal and idler beams. The coincidence counting rate for corresponding matrix elements yields the results of six different Boolean operations. We illustrate a possible implementation, discussing its energy costs and finding its capability to process 25 operations in parallel with only a few hundred photons.
Authors
- N. Rubiano da Silva
- R. Medeiros de Araújo
- R. C. Souza Pimenta
- P. H. Souto Ribeiro
- M.G. Damaceno
- L. Marques Fagundes
Institutions
- Universidade Federal de Santa Catarina (BR)
Publication Details
- Journal
- Brazilian Journal of Physics
- Published
- 2026-06-16
- DOI
- https://doi.org/10.1007/s13538-026-02111-w
- Primary Topic
- Quantum Information and Cryptography
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Fundação de Amparo à Pesquisa e Inovação do Estado de Santa Catarina
- Universidade Federal de Santa Catarina
- Instituto Nacional de Ciência e Tecnologia de Informação Quântica