The Magnus expansion and the in-medium similarity renormalization group

T. D. Morris, S. K. Bogner

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present a variant of the in-medium similarity renormalization group(IMSRG) based on the Magnus expansion. In this new variant, the unitary transformation of the IMSRG is constructed explicitly, which allows for the transformation of observables quickly and easily. Additionally, the stiffness of equations encountered by the traditional solution of the IMSRG can be alleviated greatly. We present results and comparisons for the 3d electron gas.

Original languageEnglish
Title of host publication4rth Conference on Nuclei and Mesoscopic Physics 2014
EditorsVladimir Zelevinsky, Alex Levchenko, Pawel Danielewicz, Pawel Danielewicz
PublisherAmerican Institute of Physics Inc.
Pages117-125
Number of pages9
ISBN (Electronic)9780735412569
DOIs
StatePublished - 2014
Externally publishedYes
Event4th Conference on Nuclei and Mesoscopic Physic, NMP 2014 - East Lansing, United States
Duration: May 5 2014May 9 2014

Publication series

NameAIP Conference Proceedings
Volume1619
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th Conference on Nuclei and Mesoscopic Physic, NMP 2014
Country/TerritoryUnited States
CityEast Lansing
Period05/5/1405/9/14

Keywords

  • Ab initio methods
  • Many-Body Theory

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