Heisenberg-limited metrology from the quantum-quench dynamics of an anisotropic ferromagnet

This article likely discusses a new method for metrology (measurement science) that achieves the Heisenberg limit, a fundamental bound on the precision of quantum measurements. The research focuses on the dynamics of an anisotropic ferromagnet after a quantum quench, suggesting the use of quantum phenomena to improve measurement accuracy. The source being ArXiv indicates this is a pre-print, meaning it's a research paper that has not yet undergone peer review.