Discrimination and certification of unknown quantum measurements
| Author | Krawiec A.; Pawela Ł.; Puchała Z. |
|---|---|
| Title | Discrimination and certification of unknown quantum measurements |
| Journal | Quantum |
| Year | 2024 |
| Status | Published |
| Volume | 8 |
| DOI | 10.22331/q-2024-02-29-1269 |
| URL | https://doi.org/10.22331/q-2024-02-29-1269 |
| Abstract | <p><span style="font-family:sans-serif; font-size:14.944px">We study the discrimination of von Neumann measurement in the scenario</span><span style="font-family:sans-serif; font-size:14.944px"> when we are given a reference measurement and some other measurement. The aim of</span><span style="font-family:sans-serif; font-size:14.944px"> the discrimination is to determine whether the other measurement is the same as the</span><span style="font-family:sans-serif; font-size:14.944px"> first one. We consider the cases when the reference measurement is given without the</span><span style="font-family:sans-serif; font-size:14.944px"> classical description and when its classical description is known. Both cases are studied</span><span style="font-family:sans-serif; font-size:14.944px"> in the symmetric and asymmetric discrimination setups. Moreover, we provide optimal</span><span style="font-family:sans-serif; font-size:14.944px"> certification schemes enabling us to certify a known quantum measurement against the</span><span style="font-family:sans-serif; font-size:14.944px"> unknown one.</span></p> |
| ISSN | 2521-327X |
| q-2024-02-29-1269.pdf |