Quantum nonlocality certification from Bell inequalities in three-level many-body systems
| Autor: | MÜller Rigat, Guillem-Jacob |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Institut de Ciències Fotòniques, Lewenstein, Maciej, Aloy, Albert |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | In this work, we aim at studying the applicability of the recently discovered multipartite permutationally invariant three-outcome Bell inequality involving at most second order correlation functions (3-outcome PIBI) presented in Aloy et. al. (in progress) to systems of physical interest. In particular, we display a class of unitary equivalent states for which it is possible to detect nonlocality only with individual spin-1 measurements, and therefore physically realizable. Conversely, we have identified nonlinear interactions, beyond su (2), to be key in the nonlocalization mechanism. Finally, we reveal nonlocality for the ground state of the three-level Lipkin-Meshkov-Glick model, not only for infinite-range, but also power-law interactions. This breaks ground to use 3-outcome PIBIs as a certification tool in long-range quantum simulators. |
| Databáze: | OpenAIRE |
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