Emergence of realism through quantum discord suppression in photonic weak measurements
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 infl...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/add205 |
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| _version_ | 1850193993537683456 |
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| author | Fabrício Lustosa Diego G Barreto Eduardo C Lima Luciano S Cruz Pedro R Dieguez Breno Marques |
| author_facet | Fabrício Lustosa Diego G Barreto Eduardo C Lima Luciano S Cruz Pedro R Dieguez Breno Marques |
| author_sort | Fabrício Lustosa |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-a7ada64d030f4db6b0f3038ab9d51906 |
| institution | OA Journals |
| issn | 1367-2630 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj-art-a7ada64d030f4db6b0f3038ab9d519062025-08-20T02:14:07ZengIOP PublishingNew Journal of Physics1367-26302025-01-0127505450310.1088/1367-2630/add205Emergence of realism through quantum discord suppression in photonic weak measurementsFabrício Lustosa0Diego G Barreto1Eduardo C Lima2Luciano S Cruz3Pedro R Dieguez4https://orcid.org/0000-0002-8286-2645Breno Marques5https://orcid.org/0000-0002-2560-7162Centro de Ciências Naturais e Humanas, Universidade Federal do ABC-UFABC , Santo André 09210-580, BrazilCentro de Ciências Naturais e Humanas, Universidade Federal do ABC-UFABC , Santo André 09210-580, BrazilCentro de Ciências Naturais e Humanas, Universidade Federal do ABC-UFABC , Santo André 09210-580, BrazilCentro de Ciências Naturais e Humanas, Universidade Federal do ABC-UFABC , Santo André 09210-580, BrazilInternational Centre for Theory of Quantum Technologies, University of Gdańsk , Jana Bażyńskiego 1A, 80-309 Gdańsk, PolandCentro de Ciências Naturais e Humanas, Universidade Federal do ABC-UFABC , Santo André 09210-580, BrazilThe 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.https://doi.org/10.1088/1367-2630/add205realismweak measurementsquantum correlationsphotonic experiments |
| spellingShingle | Fabrício Lustosa Diego G Barreto Eduardo C Lima Luciano S Cruz Pedro R Dieguez Breno Marques Emergence of realism through quantum discord suppression in photonic weak measurements New Journal of Physics realism weak measurements quantum correlations photonic experiments |
| title | Emergence of realism through quantum discord suppression in photonic weak measurements |
| title_full | Emergence of realism through quantum discord suppression in photonic weak measurements |
| title_fullStr | Emergence of realism through quantum discord suppression in photonic weak measurements |
| title_full_unstemmed | Emergence of realism through quantum discord suppression in photonic weak measurements |
| title_short | Emergence of realism through quantum discord suppression in photonic weak measurements |
| title_sort | emergence of realism through quantum discord suppression in photonic weak measurements |
| topic | realism weak measurements quantum correlations photonic experiments |
| url | https://doi.org/10.1088/1367-2630/add205 |
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