Dynamic many-body theory: Multiparticle fluctuations and the dynamic structure of He 4

C. E. Campbell, E. Krotscheck, T. Lichtenegger

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

We present further progress in a systematic approach to the microscopic understanding of the dynamics of strongly interacting quantum fluids. Employing the concept of dynamic multiparticle fluctuations, we derive equations of motion for fluctuating n-body densities. We apply the theory to calculate the dynamic structure function of liquid He4 as a function of density and find, without any phenomenological input, overall excellent agreement with both experiments and, as far as available, simulation data.

Original languageEnglish (US)
Article number184510
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume91
Issue number18
DOIs
StatePublished - May 14 2015

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