| Full text | |
| Author(s): |
Lustosa, Fabricio
;
Barreto, Diego G.
;
Lima, Eduardo C.
;
Cruz, Luciano S.
;
Dieguez, Pedro R.
;
Marques, Breno
Total Authors: 6
|
| Document type: | Journal article |
| Source: | NEW JOURNAL OF PHYSICS; v. 27, n. 5, p. 10-pg., 2025-05-01. |
| Abstract | |
The emergence of realism from the quantum domain, often associated with the suppression of quantum features, is a key aspect of the quantum-to-classical transition. In this work, we implement an experiment with Werner states subjected to weak measurements to investigate how quantum correlations influence the emergence of realism. Maximally entangled twin photons, generated via spontaneous parametric down-conversion, are used to prepare Werner states. We employ a monitoring model that smoothly transitions between weak and strong nonselective measurements, along with an irrealism measure. Our findings demonstrate that quantum discord suppression induced by weak measurements, known as weak quantum discord, drives the emergence of realism. Additionally, our findings highlight the robustness of the irrealism measure in quantum correlation-based scenarios. (AU) | |
| FAPESP's process: | 23/03513-0 - Quantum correlated light source in photonic chips |
| Grantee: | Eduardo da Costa Lima |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| FAPESP's process: | 23/11444-9 - Implementation of quantum information protocols using qudits in photonic chips |
| Grantee: | Diego Guimarães Barreto |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| FAPESP's process: | 21/14303-1 - Photonic chips to implement quantum information protocols |
| Grantee: | Breno Marques Goncalves Teixeira |
| Support Opportunities: | Research Grants - Young Investigators Grants |