Dynamic structure factor for 3He in two-dimensions

Abstract

Recent neutron scattering experiments on 3He films have observed a zero-sound mode, its dispersion relation and its merging with -and possibly emerging from- the particle-hole continuum. Here we address the study of the excitations in the system via quantum Monte Carlo methods: we suggest a practical scheme to calculate imaginary time correlation functions for moderate-size fermionic systems. Combined with an efficient method for analytic continuation, this scheme affords an extremely convincing description of the experimental findings.

5 pages, 5 figures

References in corpus (2)

• Excitation spectrum of a supersolid
• Exact ground state Monte Carlo method for Bosons without importance sampling

Cited by in corpus (18)

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