250 citations · 544 across the 11 of their papers we have counts for
11 papers
Consequences of Symmetry Fractionalization without 1-Form Global Symmetries
T. Daniel Brennan, Theodore Jacobson, Konstantinos Roumpedakis
We study the fractionalization of 0-form global symmetries on line operators in theories without 1-form global symmetries. The projective transformation properties of line operator…
Locality and Conserved Charges in -Deformed CFTs
Ruben Monten, Richard M. Myers, Konstantinos Roumpedakis
We investigate the locality properties of -deformed CFTs within perturbation theory. Up to third order in the deformation parameter, we find a Hamiltonian operator w…
Exploring Non-Invertible Symmetries in Free Theories
Pierluigi Niro, Konstantinos Roumpedakis, Orr Sela
Symmetries corresponding to local transformations of the fundamental fields that leave the action invariant give rise to (invertible) topological defects, which obey group-like fus…
Refining the Cutoff 3d Gravity / Correspondence
Per Kraus, Ruben Monten, Konstantinos Roumpedakis
Pure gravity in AdS is a theory of boundary excitations, most simply expressed as a constrained free scalar with an improved stress tensor that is needed to match the Brown--He…
Higher Gauging and Non-invertible Condensation Defects
Konstantinos Roumpedakis, Sahand Seifnashri, Shu-Heng Shao
We discuss invertible and non-invertible topological condensation defects arising from gauging a discrete higher-form symmetry on a higher codimensional manifold in spacetime, whic…
Feynman, Lewin, and Einstein Download Zoom: A Guide for Incorporating E-Teaching of Physics in a Post-COVID World
Daniel J. O'Brien
Distance education has expanded significantly over the last decade, but the natural sciences have lagged in the implementation of this instructional mode. The abrupt onset of the C…
Line Operators of Gauge Theories on Non-Spin Manifolds
J. P. Ang, Konstantinos Roumpedakis, Sahand Seifnashri
We study four-dimensional gauge theories on oriented and non-spin spacetime manifolds. On such manifolds, each line operator arises only either as a boson or a fermion. Based on ph…
Tree-Level Correlators: Hidden Six-Dimensional Conformal Symmetry
Leonardo Rastelli, Konstantinos Roumpedakis, Xinan Zhou
We revisit the calculation of holographic correlators in . We develop new methods to evaluate exchange Witten diagrams, resolving some technical difficulties that prevent a…
3D Dualities and Supersymmetry Enhancement from Domain Walls
Martin Roček, Konstantinos Roumpedakis, Sahand Seifnashri
We test recently proposed IR dualities and supersymmetry enhancement by studying the supersymmetry on domain walls. In the Wess-Zumino model studied in arXiv:1804.02018 and…
Comments on the orbifold CFT in the large -limit
Konstantinos Roumpedakis
We elaborate on various aspects of the conformal field theory of the symmetric orbifold. We collect various results that have appeared in the literature, and we present a coherent…
Leading Order Anomalous Dimensions at the Wilson-Fisher Fixed Point from CFT
Konstantinos Roumpedakis
In this paper we consider theory in dimensions at the Wilson-Fisher fixed point where the theory becomes conformal. We extend the method in arXiv:1505.00963 for calcula…