en
Scientific article
Open access
English

Self-testing quantum states and measurements in the prepare-and-measure scenario

Published inPhysical Review. A, vol. 98, no. 062307
Publication date2018
Abstract

The goal of self-testing is to characterize an a priori unknown quantum system based solely on measurement statistics, i.e. using an uncharacterized measurement device. Here we develop self-testing methods for quantum prepare-and-measure experiments, thus not necessarily relying on entanglement and/or violation of a Bell inequality. We present noise-robust techniques for self-testing sets of quantum states and measurements, assuming an upper bound on the Hilbert space dimension. We discuss in detail the case of a 2→1 random access code with qubits, for which we provide analytically optimal self-tests. The simplicity and noise robustness of our methods should make them directly applicable to experiments.

Citation (ISO format)
TAVAKOLI, Armin et al. Self-testing quantum states and measurements in the prepare-and-measure scenario. In: Physical Review. A, 2018, vol. 98, n° 062307. doi: 10.1103/PhysRevA.98.062307
Main files (1)
Article (Accepted version)
accessLevelPublic
Identifiers
ISSN of the journal1050-2947
262views
220downloads

Technical informations

Creation12/02/2019 3:48:00 PM
First validation12/02/2019 3:48:00 PM
Update time03/15/2023 6:30:11 PM
Status update03/15/2023 6:30:10 PM
Last indexation01/17/2024 8:23:36 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack