Self-testing quantum states and measurements in the prepare-and-measure scenario
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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.
Originalsprog | Engelsk |
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Artikelnummer | 062307 |
Tidsskrift | Physical Review A |
Vol/bind | 98 |
Udgave nummer | 6 |
ISSN | 2469-9926 |
DOI | |
Status | Udgivet - 6 dec. 2018 |
Links
- https://arxiv.org/pdf/1801.08520.pdf
Indsendt manuskript
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