Publications
Quantum Bounds on Detector Efficiencies for Violating Bell Inequalities Using Semidefinite Programming
| Author | Alber, Gernot; Sauer, Alexander |
|---|---|
| Date | 2020 |
| Type | Journal Article |
| Abstract | Loophole-free violations of Bell inequalities are crucial for fundamental tests of quantum nonlocality. They are also important for future applications in quantum information processing, such as device-independent quantum key distribution. Based on a detector model which includes detector inefficiencies and dark counts, we estimate the minimal requirements on detectors needed for performing loophole-free bipartite and tripartite Bell tests. Our numerical investigation is based on a hierarchy of semidefinite programs for characterizing possible quantum correlations. We find that for bipartite setups with two measurement choices and our detector model, the optimal inequality for a Bell test is equivalent to the Clauser–Horne inequality. |
| In | Cryptography |
| Publisher | MDPI |
| Url | https://tubiblio.ulb.tu-darmstadt.de/id/eprint/127004 |
