H
Holger Gies
Researcher at University of Jena
Publications - 232
Citations - 10031
Holger Gies is an academic researcher from University of Jena. The author has contributed to research in topics: Functional renormalization group & Effective action. The author has an hindex of 55, co-authored 225 publications receiving 8937 citations. Previous affiliations of Holger Gies include Helmholtz Institute Jena & CERN.
Papers
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Book ChapterDOI
Introduction to the Functional RG and Applications to Gauge Theories
TL;DR: In this paper, the authors present a lecture course intended to fill the gap between graduate courses on quantum field theory and specialized reviews or forefront-research articles on functional renormalization group approaches to quantum fields and gauge theories.
Journal ArticleDOI
Dynamically assisted Schwinger mechanism.
TL;DR: Intuitively speaking, the strong electric field lowers the threshold for dynamical particle creation--or, alternatively, the fast electromagnetic field generates additional seeds for the Schwinger mechanism, which could be relevant for planned ultrahigh intensity lasers.
Journal ArticleDOI
Quark confinement from colour confinement
TL;DR: In this paper, a simple criterion for quark confinement based on the IR behaviour of ghost and gluon propagators was proposed, and the order-parameter potential was derived from the knowledge of Landau-gauge correlation functions with the aid of the functional RG.
Journal ArticleDOI
Renormalization flow of bound states
Holger Gies,Christof Wetterich +1 more
TL;DR: In this paper, a renormalization flow of scalar bound states which are formed out of fundamental fermions is studied in the context of effective average action, where the notions of a bound state or fundamental particle become scale dependent, being classified by the fixed-point structure of the flow of effective couplings.
Book
Probing the Quantum Vacuum: Perturbative Effective Action Approach in Quantum Electrodynamics and its Application
Walter Dittrich,Holger Gies +1 more
TL;DR: In this article, the effect of probing the vacuum with external perturbations is considered, and its response is analyzed after averaging over the high-energy degrees of freedom, with a variety of applications to light propagation, photon splitting and light-by-light scattering.