Year: 2023
Type: article
Abstract: This work overviews the single-particle two-way communication protocol recently introduced by del Santo and Dakić (dSD), and analyses it using the process matrix formalism. We give a detailed account of the importance and the operational meaning of the interaction of an agent with the vacuum – in particular its role in the process matrix description. Our analysis shows that the interaction with the vacuum should be treated as an operation, on equal footing with all other interactions. This raises the issue of counting such operations in an operational manner. Motivated by this analysis, we apply the process matrix formalism to capped Fock spaces using the framework of second quantisation, in order to characterise protocols with an indefinite number of identical particles.
Source: Quantum
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $215
Awards: G1516346500, G1578237752, G1763632427, G1939289103, G2144570049, G241473106, G2499959356, G2553850141, G2760856516, G337151945, Instituto de Telecomunicações, G3783317134, G3838636553, G3840324753, G3850789590, G3891694003, G3905055311, G3910153650, G4194598094, G4479089119, G4541621844, G4730158122, G4792409162, G495187929, G5224927334, G5271502856, G5421018868, G5454278309, G575169067, G5928570650, G59476441, G6126344035, Quatum communication and practical quantum cryptography, G6193589897, Buracos negros, holografia e transições de fase, Geração de números primos habilitada por tecnologias quânticas para aplicações criptográficas, G6681517377, Terapia personalizada para doenças reumáticas por intermédio de aprendizagem automática, G686176069, G8012631579, G8419648384, G8686789620, G8806717696
OpenAlex ID: W3134026615