Cartan quantum metrology
We address the characterization of two-qubit gates, focusing on bounds to precision in the joint estimation of the three parameters that define their Cartan decomposition. We derive the optimal probe states that jointly maximize precision, minimize sloppiness, and eliminate quantum incompatibility....
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| Format: | Article |
| Language: | English |
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Elsevier
2025-05-01
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| Series: | Physics Open |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666032625000109 |
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| _version_ | 1849321531630419968 |
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| author | Gabriele Fazio Jiayu He Matteo G.A. Paris |
| author_facet | Gabriele Fazio Jiayu He Matteo G.A. Paris |
| author_sort | Gabriele Fazio |
| collection | DOAJ |
| description | We address the characterization of two-qubit gates, focusing on bounds to precision in the joint estimation of the three parameters that define their Cartan decomposition. We derive the optimal probe states that jointly maximize precision, minimize sloppiness, and eliminate quantum incompatibility. Additionally, we analyze the properties of the set of optimal probes and evaluate their robustness against noise. |
| format | Article |
| id | doaj-art-db4ea86d553c4b5594cf6eedbccd26cf |
| institution | Kabale University |
| issn | 2666-0326 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Open |
| spelling | doaj-art-db4ea86d553c4b5594cf6eedbccd26cf2025-08-20T03:49:44ZengElsevierPhysics Open2666-03262025-05-012310026010.1016/j.physo.2025.100260Cartan quantum metrologyGabriele Fazio0Jiayu He1Matteo G.A. Paris2Dipartimento di Fisica Aldo Pontremoli, Università degli Studi di Milano, I-20133 Milano, ItalyQTF Centre of Excellence, Department of Physics, University of Helsinki, FI 00014, Helsinki, FinlandDipartimento di Fisica Aldo Pontremoli, Università degli Studi di Milano, I-20133 Milano, Italy; Corresponding author.We address the characterization of two-qubit gates, focusing on bounds to precision in the joint estimation of the three parameters that define their Cartan decomposition. We derive the optimal probe states that jointly maximize precision, minimize sloppiness, and eliminate quantum incompatibility. Additionally, we analyze the properties of the set of optimal probes and evaluate their robustness against noise.http://www.sciencedirect.com/science/article/pii/S2666032625000109Multiparameter quantum estimationQuantum metrologyCartan Decomposition |
| spellingShingle | Gabriele Fazio Jiayu He Matteo G.A. Paris Cartan quantum metrology Physics Open Multiparameter quantum estimation Quantum metrology Cartan Decomposition |
| title | Cartan quantum metrology |
| title_full | Cartan quantum metrology |
| title_fullStr | Cartan quantum metrology |
| title_full_unstemmed | Cartan quantum metrology |
| title_short | Cartan quantum metrology |
| title_sort | cartan quantum metrology |
| topic | Multiparameter quantum estimation Quantum metrology Cartan Decomposition |
| url | http://www.sciencedirect.com/science/article/pii/S2666032625000109 |
| work_keys_str_mv | AT gabrielefazio cartanquantummetrology AT jiayuhe cartanquantummetrology AT matteogaparis cartanquantummetrology |