| Autor: |
Moreau, Paul-Antoine, Toninelli, Ermes, Gregory, Thomas, Aspden, Reuben S., Morris, Peter A., Padgett, Miles J. |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| ISSN: |
2375-2548 |
| Popis: |
The violation of a Bell inequality not only attests to the nonclassical nature of a system but also holds a very unique status within the quantum world. The amount by which the inequality is violated often provides a good benchmark on how a quantum protocol will perform. Acquiring images of such a fundamental quantum effect is a demonstration that images can capture and exploit the essence of the quantum world. Here, we report an experiment demonstrating the violation of a Bell inequality within observed images. It is based on acquiring full-field coincidence images of a phase object probed by photons from an entangled pair source. The image exhibits a violation of a Bell inequality with S = 2.44 ± 0.04. This result both opens the way to new quantum imaging schemes based on the violation of a Bell inequality and suggests promise for quantum information schemes based on spatial variables. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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