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Título: | Non-gaussian Entanglement Swapping between Three-Mode Spontaneous Parametric Down Conversion and Three Qubits |
Autor: | Agustí, Andrés CSIC; Sabín, Carlos CSIC ORCID CVN | Palabras clave: | Quantum Physics | Fecha de publicación: | 3-feb-2022 | Editor: | American Physical Society | Citación: | Physical Review - Section A - Atomic Molecular and Optical Physics 105: 022401 (2022) | Resumen: | In this work we study the production and swapping of non-gaussian multipartite entanglement in a setup containing a parametric amplifier which generates three photons in different modes coupled to three qubits. We prove that the entanglement generated in this setup is of nongaussian nature. We introduce witnesses of genuine tripartite nongaussian entanglement, valid both for mode and qubit entanglement. Moreover, those witnesses show that the entanglement generated among the photons can be swapped to the qubits, and indeed the qubits display nongaussian genuine tripartite entanglement over a wider parameter regime, suggesting that our setup could be a useful tool to extract entanglement generated in higher-order parametric amplification for quantum metrology or quantum computing applications. | Descripción: | 10 pags., 3 figs., 4 apps. | Versión del editor: | https://doi.org/10.1103/PhysRevA.105.022401 | URI: | http://hdl.handle.net/10261/269005 | DOI: | 10.1103/PhysRevA.105.022401 | ISSN: | 2469-9926 |
Aparece en las colecciones: | (CFMAC-IFF) Artículos |
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Non-Gaussian entanglement swapping.pdf | Artículo principal | 488,29 kB | Adobe PDF | Visualizar/Abrir |
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