Gaussian quantum estimation of the loss parameter in a thermal environment

Lossy bosonic channels play an important role in a number of quantum information tasks, since they well approximate thermal dissipation in an experiment. Here, we characterize their metrological power in the idler-free and entanglement-assisted cases, using respectively single- and two-mode Gaussian...

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Veröffentlicht in:	Journal of physics. A, Mathematical and theoretical Mathematical and theoretical, 2022-09, Vol.55 (38), p.385301
Hauptverfasser:	Jonsson, Robert, Di Candia, Roberto
Format:	Artikel
Sprache:	eng
Schlagworte:	Bosonic amplitude-damping channel quantum Fisher information quantum illumination quantum metrology quantum reading quantum sensing
Online-Zugang:	Volltext
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