Linear response of one-dimensional liquid ${}^4$He to external perturbations

Abstract

We study the response of one-dimensional liquid ${}^4$He to weak perturbations relying on the dynamical structure factor, $S(q,\omega )$, recently obtained via ab-initio techniques [Phys. Rev. Lett. 116, 135302 (2016)]. We evaluate the drag force, $F_v$, experienced by an impurity moving along the system with velocity $v$ and the static response function, $\chi (q)$, describing the density modulations induced by a periodic perturbation with wave vector $q$.

7 pages, 2 figures

References in corpus (8)

• Luttinger Liquid in the Core of Screw Dislocation in Helium-4
• Helium-4 Luttinger liquids in nanopores
• Interacting bosons in one dimension and Luttinger liquid theory
• Exact ground state Monte Carlo method for Bosons without importance sampling
• Solid 4He and the Supersolid Phase: from Theoretical Speculation to the Discovery of a New State of Matter? A Review of the Past and Present Status of Research
• Dynamical structure factor of one-dimensional hard rods
• Ground-State Properties of a One-Dimensional System of Hard Rods
• Dissipative superfluid mass flux through solid 4He

Cited by in corpus (1)

• Statistical and computational intelligence approach to analytic continuation in Quantum Monte Carlo