Enhanced precision bound of low-temperature quantum thermometry via dynamical control
dc.contributor.author | Mukherjee, Victor | |
dc.contributor.author | Zwick, Analia | |
dc.contributor.author | Ghosh, Arnab | |
dc.contributor.author | Chen, Xi | |
dc.contributor.author | Kurizki, Gershon | |
dc.date.accessioned | 2020-03-25T12:50:21Z | |
dc.date.available | 2020-03-25T12:50:21Z | |
dc.date.issued | 2019-12-13 | |
dc.identifier.citation | Communications Physiscs 2 : (2019) // Article ID 162 | es_ES |
dc.identifier.issn | 2399-3650 | |
dc.identifier.uri | http://hdl.handle.net/10810/42325 | |
dc.description.abstract | High-precision low-temperature thermometry is a challenge for experimental quantum physics and quantum sensing. Here we consider a thermometer modeled by a dynamically-controlled multilevel quantum probe in contact with a bath. Dynamical control in the form of periodic modulation of the energy-level spacings of the quantum probe can dramatically increase the maximum accuracy bound of low-temperatures estimation, by maximizing the relevant quantum Fisher information. As opposed to the diverging relative error bound at low temperatures in conventional quantum thermometry, periodic modulation of the probe allows for low-temperature thermometry with temperature-independent relative error bound. The proposed approach may find diverse applications related to precise probing of the temperature of many-body quantum systems in condensed matter and ultracold gases, as well as in different branches of quantum metrology beyond thermometry, for example in precise probing of different Hamiltonian parameters in many-body quantum critical systems. | es_ES |
dc.description.sponsorship | We acknowledge Wolfgang Niedenzu for helpful discussions. The support of DFG (FOR 7024), EU-FET Open (PATHOS) project, ISF, VATAT, NSFC (11474193), CONICET, CNEA, Shuguang (14SG35), STCSM (18010500400 and 18ZR1415500), the Program for Eastern Scholar and the Ramony Cajal program (RYC-2017-22482) of the Spanish MINECO, Initiation Grant (2018513) and SRG/2019000289 are acknowledged. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Nature | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/RYC-2017-22482 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | entanglement | es_ES |
dc.subject | thermalization | es_ES |
dc.subject | frequency | es_ES |
dc.title | Enhanced precision bound of low-temperature quantum thermometry via dynamical control | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/ licenses/by/4.0/. | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://www.nature.com/articles/s42005-019-0265-y | es_ES |
dc.identifier.doi | 10.1038/s42005-019-0265-y | |
dc.departamentoes | Química física | es_ES |
dc.departamentoeu | Kimika fisikoa | es_ES |
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Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/ licenses/by/4.0/.