Self-testing quantum states and measurements in the prepare-and-measure scenario
Research output: Contribution to journal › Journal article › Research › peer-review
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.
Original language | English |
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Article number | 062307 |
Journal | Physical Review A |
Volume | 98 |
Issue number | 6 |
ISSN | 2469-9926 |
DOIs | |
Publication status | Published - 6 Dec 2018 |
Links
- https://arxiv.org/pdf/1801.08520.pdf
Submitted manuscript
ID: 218358709