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- University of California, BerkeleyUS148 papers
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8 papers · 2 filters
Universal mechanism of (semi-classical) deconfinement and theta-dependence for all simple groups
Erich Poppitz, Thomas Schaefer, Mithat Unsal
Using the twisted partition function on R^3 x S^1, we argue that the deconfinement phase transition in pure Yang-Mills theory for all simple gauge groups is continuously connected…
Continuity and Resurgence: towards a continuum definition of the CP(N-1) model
Gerald V. Dunne, Mithat Unsal
We introduce a non-perturbative continuum framework to study the dynamics of quantum field theory (QFT), applied here to the CP(N-1) model, using Ecalle's theory of resurgent trans…
Resurgence and Trans-series in Quantum Field Theory: The CP(N-1) Model
Gerald V. Dunne, Mithat Unsal
This work is a step towards a non-perturbative continuum definition of quantum field theory (QFT), beginning with asymptotically free two dimensional non-linear sigma-models, using…
The semi-classical expansion and resurgence in gauge theories: new perturbative, instanton, bion, and renormalon effects
Philip C. Argyres, Mithat Ünsal
We study the dynamics of four dimensional gauge theories with adjoint fermions for all gauge groups, both in perturbation theory and non-perturbatively, by using circle compactific…
Continuity, Deconfinement, and (Super) Yang-Mills Theory
Erich Poppitz, Thomas Schaefer, Mithat Unsal
We study the phase diagram of SU(2) Yang-Mills theory with one adjoint Weyl fermion on R^3xS^1 as a function of the fermion mass m and the compactification scale L. This theory red…
A semiclassical realization of infrared renormalons
Philip Argyres, Mithat Unsal
Perturbation series in quantum field theory are generally divergent asymptotic series which are also typically not Borel resummable in the sense that the resummed series is ambiguo…