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hep-th2026
Nambu-Goldstone Bosons and Quantum Fisher Information
Eugene Chen, Daniel Green
The quantum Fisher matrix and geometric tensor are powerful tools for quantifying the nature of quantum systems. Unfortunately, the formalism needed to compute these quantities is…
hep-th2026
A Convergent Kinetic-Term Perturbation Expansion for Theory
Eugene Chen
We revisit scalar theory and construct a reorganized perturbative expansion in which the kinetic operator, rather than the quartic interaction, is treated as the perturbation…