Nonlinear electronic density response of the ferromagnetic uniform\n electron gas at warm dense matter conditions

2021/06/07 by Tobias Dornheim, Dornheim, Tobias, Zhandos A. Moldabekov +3 · 2 citations
Materials Science · Physics and Astronomy · #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #Plasma Physics (physics.plasm-ph) #Quantum and electron transport phenomena #Statistical Mechanics (cond-mat.stat-mech)

paper · pdf · doi:10.48550/arxiv.2106.03444

openalex publication_date 2021/06/07 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28

Abstract

In a recent Letter [T.~Dornheim \et al., Phys.~Rev.~Lett.~\125,\n085001 (2020)], we have presented the first \ab initio results for the\nnonlinear density response of electrons in the warm dense matter regime. In the\npresent work, we extend these efforts by carrying out extensive new path\nintegral Monte Carlo (PIMC) simulations of a \ferromagnetic electron gas\nthat is subject to an external harmonic perturbation. This allows us to\nunambiguously quantify the impact of spin-effects on the nonlinear density\nresponse of the warm dense electron gas. In addition to their utility for the\ndescription of warm dense matter in an external magnetic field, our results\nfurther advance our current understanding of the uniform electron gas as a\nfundamental model system, which is important in its own right.\n

Cited by

• Generalized density functional theory framework for the non-linear density response of quantum many-body systems
• Taylor series perspective on ab initio path integral Monte Carlo simulations with Fermi-Dirac statistics

Related

• Spin-resolved density response of the warm dense electron gas
• Nonlinear electronic density response of the warm dense electron gas: multiple perturbations and mode coupling
• Electronic density response of warm dense hydrogen on the nanoscale
• Dynamic properties of the warm dense uniform electron gas with the qSTLS dielectric scheme
• Chemical potential of the warm dense electron gas from ab initio path integral Monte Carlo simulations