In this article we derive a closed form expression for the incompatibility condition in multi-parameter quantum metrology when the reference states are Fermionic Gaussian states. Together with the quantum Fisher information, the knowledge of the compatibility condition provides a way of designing optimal measurement strategies for multi-parameter quantum estimation. Applications range from quantum metrology with thermal states to non-equilibrium steady states with Fermionic and spin systems.
Carollo, A., Spagnolo, B., Valenti, D. (2019). Incompatibility in Multi-Parameter Quantum Metrology with Fermionic Gaussian States. PROCEEDINGS, 12(1), 34-40 [10.3390/proceedings2019012034].
Incompatibility in Multi-Parameter Quantum Metrology with Fermionic Gaussian States
Carollo, Angelo
;Spagnolo, Bernardo;Valenti, Davide
2019-01-01
Abstract
In this article we derive a closed form expression for the incompatibility condition in multi-parameter quantum metrology when the reference states are Fermionic Gaussian states. Together with the quantum Fisher information, the knowledge of the compatibility condition provides a way of designing optimal measurement strategies for multi-parameter quantum estimation. Applications range from quantum metrology with thermal states to non-equilibrium steady states with Fermionic and spin systems.
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Descrizione: c 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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