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Chiral Lagrangian from Duality and Monopole Operators in Compactified QCD
Aleksey Cherman, Thomas Schaefer, Mithat Unsal
We show that there exists a special compactification of QCD on in which the theory has a domain where continuous chiral symmetry breaking is analytically…
Toward Picard-Lefschetz Theory of Path Integrals, Complex Saddles and Resurgence
Alireza Behtash, Gerald V. Dunne, Thomas Schaefer +2
We show that the semi-classical analysis of generic Euclidean path integrals necessarily requires complexification of the action and measure, and consideration of complex saddle so…
Complexified path integrals, exact saddles and supersymmetry
Alireza Behtash, Gerald V. Dunne, Thomas Schaefer +2
In the context of two illustrative examples from supersymmetric quantum mechanics we show that the semi-classical analysis of the path integral requires complexification of the con…
Hidden topological angles and Lefschetz thimbles
Alireza Behtash, Tin Sulejmanpasic, Thomas Schaefer +1
We demonstrate the existence of hidden topological angles (HTAs) in a large class of quantum field theories and quantum mechanical systems. HTAs are distinct from theta-parameters…
Viscosity spectral function of a scale invariant non-relativistic fluid from holography
Thomas Schaefer
We study the viscosity spectral function of a holographic 2+1 dimensional fluid with Schroedinger symmetry. The model is based on a twisted compactification of . W…
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…
Strongly Correlated Quantum Fluids: Ultracold Quantum Gases, Quantum Chromodynamic Plasmas, and Holographic Duality
Allan Adams, Lincoln D. Carr, Thomas Schaefer +2
Strongly correlated quantum fluids are phases of matter that are intrinsically quantum mechanical, and that do not have a simple description in terms of weakly interacting quasi-pa…
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…
Conformal symmetry and non-relativistic second order fluid dynamics
Jingyi Chao, Thomas Schaefer
We study the constraints imposed by conformal symmetry on the equations of fluid dynamics at second order in gradients of the hydrodynamic variables. At zeroth order conformal symm…