Path Integral Spin Dynamics for Quantum Paramagnets

• Published in: Advanced Physics Research Vol. 4; no. 8
• Main Authors: Nussle, Thomas, Thibaudeau, Pascal, Nicolis, Stam
• Format: Journal Article
• Language: English
• Published: Wiley 01.08.2025; Wiley-VCH
• Subjects: atomistic spin dynamics; Computational Physics; Condensed Matter; Materials Science; paramagnetic hamiltonian; path integrals; Physics; quantum magnetization; Quantum Physics; atomistic spin dynamics; Paramagnetic hamiltonian; spin coherent states; Quantum magnetisation; Path integrals

A path integral method, combined with atomistic spin dynamics simulations, is developed to calculate thermal quantum expectation values using a classical approach. In this study, it is shown how to treat Hamiltonians with non‐linear terms, that are relevant for describing uniaxial anisotropies and m...