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Sökning: WFRF:(Floerchinger Stefan)

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1.
  • Bluhm, Marcus, et al. (författare)
  • Dynamics of critical fluctuations : Theory - phenomenology - heavy-ion collisions
  • 2020
  • Ingår i: Nuclear Physics A. - : ELSEVIER. - 0375-9474 .- 1873-1554. ; 1003
  • Tidskriftsartikel (refereegranskat)abstract
    • This report summarizes the presentations and discussions during the Rapid Reaction Task Force "Dynamics of critical fluctuations: Theory - phenomenology - heavy-ion collisions", which was organized by the ExtreMe Matter Institute EMMI and held at GSI, Darmstadt, Germany in April 2019. We address the current understanding of the dynamics of critical fluctuations in QCD and their measurement in heavy-ion collision experiments. In addition, we outline what might be learned from studying correlations in other physical systems, such as cold atomic gases.
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2.
  • Floerchinger, Stefan, et al. (författare)
  • Efimov Physics from the Functional Renormalization Group
  • 2011
  • Ingår i: Few-body systems. - : Springer Science and Business Media LLC. - 0177-7963 .- 1432-5411. ; 51:2-4, SI, s. 153-180
  • Tidskriftsartikel (refereegranskat)abstract
    • Few-body physics related to the Efimov effect is discussed using the functional renormalization group method. After a short review of renormalization in its modern formulation we apply this formalism to the description of scattering and bound states in few-body systems of identical bosons and distinguishable fermions with two and three components. The Efimov effect leads to a limit cycle in the renormalization group flow. Recently measured three-body loss rates in an ultracold Fermi gas of Li-6 atoms are explained within this framework. We also discuss briefly the relation to the many-body physics of the BCS-BEC crossover for two-component fermions and the formation of a trion phase for the case of three species.
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