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quant-ph2026
Deciding the Attainability of the Multiparameter Quantum Fisher Information is NP-Hard
Lorcan O. Conlon, Laura Shou, V Vijendran +7
The quantum Fisher information (QFI) sets a fundamental bound on the attainable precision when estimating multiple parameters simultaneously. Incompatibility among the individually…
quant-ph2026
OQMD: Single-Qubit Rotation Control Improves Low-CNOT Multiclass Quantum Classification
Michael A. Magid, Melissa Zeynep Ertem, Jun Suzuki
Near-term variational classifiers incur substantial error and latency from two-qubit gates, yet practitioners often assume that additional entangling depth is the default route to…