Quantum metrology using quantum combs and tensor network formalism
We develop an efficient algorithm for determining optimal adaptive quantum estimation protocols with arbitrary quantum control operations between subsequent uses of a probed channel.We introduce a tensor network representation of an estimation strategy, which drastically reduces the time and memory...
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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/ada8d1 |
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| _version_ | 1832584906412130304 |
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| author | Stanisław Kurdziałek Piotr Dulian Joanna Majsak Sagnik Chakraborty Rafał Demkowicz-Dobrzański |
| author_facet | Stanisław Kurdziałek Piotr Dulian Joanna Majsak Sagnik Chakraborty Rafał Demkowicz-Dobrzański |
| author_sort | Stanisław Kurdziałek |
| collection | DOAJ |
| description | We develop an efficient algorithm for determining optimal adaptive quantum estimation protocols with arbitrary quantum control operations between subsequent uses of a probed channel.We introduce a tensor network representation of an estimation strategy, which drastically reduces the time and memory consumption of the algorithm, and allows us to analyze metrological protocols involving up to N = 50 qubit channel uses, whereas the state-of-the-art approaches are limited to N < 5. The method is applied to study the performance of the optimal adaptive metrological protocols in presence of various noise types, including correlated noise. |
| format | Article |
| id | doaj-art-05a7b521d58543539bb2beed1b906756 |
| institution | Kabale University |
| issn | 1367-2630 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj-art-05a7b521d58543539bb2beed1b9067562025-01-27T07:31:44ZengIOP PublishingNew Journal of Physics1367-26302025-01-0127101301910.1088/1367-2630/ada8d1Quantum metrology using quantum combs and tensor network formalismStanisław Kurdziałek0https://orcid.org/0000-0001-8877-1421Piotr Dulian1https://orcid.org/0009-0006-7312-2844Joanna Majsak2https://orcid.org/0000-0001-6612-328XSagnik Chakraborty3https://orcid.org/0000-0001-6345-9757Rafał Demkowicz-Dobrzański4https://orcid.org/0000-0001-5550-4431Faculty of Physics, University of Warsaw , Pasteura 5, 02-093 Warszawa, PolandFaculty of Physics, University of Warsaw , Pasteura 5, 02-093 Warszawa, Poland; Center for Theoretical Physics, Polish Academy of Sciences , Al. Lotników 32/46, 02-668 Warszawa, PolandFaculty of Physics, University of Warsaw , Pasteura 5, 02-093 Warszawa, Poland; Quantum Research Center, Technology Innovation Institute , Abu Dhabi, United Arab EmiratesFaculty of Physics, University of Warsaw , Pasteura 5, 02-093 Warszawa, Poland; Departamento de Física Teórica, Facultad de Ciencias Físicas, Universidad Complutense , 28040 Madrid, SpainFaculty of Physics, University of Warsaw , Pasteura 5, 02-093 Warszawa, PolandWe develop an efficient algorithm for determining optimal adaptive quantum estimation protocols with arbitrary quantum control operations between subsequent uses of a probed channel.We introduce a tensor network representation of an estimation strategy, which drastically reduces the time and memory consumption of the algorithm, and allows us to analyze metrological protocols involving up to N = 50 qubit channel uses, whereas the state-of-the-art approaches are limited to N < 5. The method is applied to study the performance of the optimal adaptive metrological protocols in presence of various noise types, including correlated noise.https://doi.org/10.1088/1367-2630/ada8d1quantum metrologyquantum Fisher informationquantum combsquantum processestensor networkscorrelated noise |
| spellingShingle | Stanisław Kurdziałek Piotr Dulian Joanna Majsak Sagnik Chakraborty Rafał Demkowicz-Dobrzański Quantum metrology using quantum combs and tensor network formalism New Journal of Physics quantum metrology quantum Fisher information quantum combs quantum processes tensor networks correlated noise |
| title | Quantum metrology using quantum combs and tensor network formalism |
| title_full | Quantum metrology using quantum combs and tensor network formalism |
| title_fullStr | Quantum metrology using quantum combs and tensor network formalism |
| title_full_unstemmed | Quantum metrology using quantum combs and tensor network formalism |
| title_short | Quantum metrology using quantum combs and tensor network formalism |
| title_sort | quantum metrology using quantum combs and tensor network formalism |
| topic | quantum metrology quantum Fisher information quantum combs quantum processes tensor networks correlated noise |
| url | https://doi.org/10.1088/1367-2630/ada8d1 |
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