Dynamic Structure Factor in BCC Helium from Quantum Monte Carlo

ORAL

Abstract

An unexpected optic-like mode has been observed by inelastic neutron scattering in BCC Helium-4. We report on worm algorithm quantum Monte Carlo calculations of the dynamic structure factor in order to compare with experiment. A theoretical model based on a dynamical Landau-Ginzburg action is also analyzed.

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Authors

  • Daniel P. Arovas

    Univ of California - San Diego, UC San Diego, University of California, San Diego

  • Snir Gazit

    Technion, Technion - Israel Institute of Technology

  • Daniel Podolsky

    Technion, Technion - Israel Institute of Technology

  • Assa Auerbach

    Technion, Technion - Israel Institute of Technology

  • Heloise Nonne

    Technion