Analytical QFIM for a graphene thermal state shows coherence and estimation precision are maximized in different parameter regimes, with temperature estimation diverging at T=0 despite peak coherence.
Quantum Fisher information matrix and multiparameter estimation,
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Interplay Between Quantum Coherence and Multiparameter Quantum Estimation in Graphene
Analytical QFIM for a graphene thermal state shows coherence and estimation precision are maximized in different parameter regimes, with temperature estimation diverging at T=0 despite peak coherence.