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RESEARCH PRODUCT
Incompatibility in Multi-Parameter Quantum Metrology with Fermionic Gaussian States
Bernardo SpagnoloAngelo CarolloDavide Valentisubject
PhysicsFermionic Gaussian statequantum geometric informationGaussianquantum metrologyMetrology Fermionic Gaussian stateslcsh:AQuantum fisher informationsymbols.namesakeTheoretical physicsThermalQuantum metrologysymbolsClosed-form expressionlcsh:General WorksQuantumMulti parameterdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-07-01 | Proceedings |