Year: 2021
Type: article
Abstract: Recently, semi-device-independent protocols have attracted increasing attention, guaranteeing security with few hypotheses and experimental simplicity. In this paper, we demonstrate a many-outcome scheme with binary phase-shift keying (BPSK) for a semi-device-independent protocol based on the energy assumption. We show in theory that the number of certified random bits of the $d$-outcome system outperforms the standard scheme (binary outcomes). Furthermore, we compare the results of two well-known measurement schemes, homodyne detection and heterodyne detection. Taking into account the experimental imperfections, we discuss the experimental feasibility of the $d$-outcome design, and finally, we experimentally validate this approach with an experiment based on BPSK modulation and heterodyne detection.
Source: Physical Review A
Institutions: University of Padua, Istituto di Fotonica e Nanotecnologie
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W3087331247