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Boundary conformal field theory at large charge [PDF]
Journal of High Energy Physics, 2021 We study operators with large internal charge in boundary conformal field theories (BCFTs) with internal symmetries. Using the state-operator correspondence and the existence of a macroscopic limit, we find a non-trivial relation between the scaling ...
Gabriel Cuomo +2 more
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On marginal operators in boundary conformal field theory [PDF]
Journal of High Energy Physics, 2019 The presence of a boundary (or defect) in a conformal field theory allows one to generalize the notion of an exactly marginal deformation. Without a boundary, one must find an operator of protected scaling dimension ∆ equal to the space-time dimension d ...
Christopher P. Herzog, Itamar Shamir
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Symmetry-resolved entanglement entropy, spectra & boundary conformal field theory
Journal of High Energy Physics, 2023 We perform a comprehensive analysis of the symmetry-resolved (SR) entanglement entropy (EE) for one single interval in the ground state of a 1 + 1D conformal field theory (CFT), that is invariant under an arbitrary finite or compact Lie group, G.
Yuya Kusuki +3 more
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Boundary holographic Witten diagrams
Journal of High Energy Physics, 2017 In this paper we discuss geodesic Witten diagrams in generic holographic conformal field theories with boundary or defect. Boundary CFTs allow two different de-compositions of two-point functions into conformal blocks: boundary channel and ambient ...
Andreas Karch, Yoshiki Sato
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Superconformal models for graphene and boundary central charges
Journal of High Energy Physics, 2018 In the context of boundary conformal field theory, we investigate whether the boundary trace anomaly can depend on marginal directions in the presence of supersymmetry. Recently, it was found that a graphene-like non-supersymmetric conformal field theory
Christopher P. Herzog +3 more
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Non-relativistic conformal field theory in the presence of boundary
Journal of High Energy Physics, 2022 We study non-relativistic conformal field theory on a flat space in the presence of a planar boundary. We compute correlation functions of primary operators and obtain the expression for the boundary conformal block.
Rajesh Kumar Gupta, Ramanpreet Singh
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A sum rule for boundary contributions to the trace anomaly
Journal of High Energy Physics, 2022 In the context of boundary conformal field theory, we derive a sum rule that relates two and three point functions of the displacement operator. For four dimensional conformal field theory with a three dimensional boundary, this sum rule in turn relates ...
Christopher P. Herzog, Vladimir Schaub
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Effects of non-conformal boundary on entanglement entropy
Journal of High Energy Physics, 2020 Spacetime boundaries with canonical Neuman or Dirichlet conditions preserve conformal invarience, but “mixed” boundary conditions which interpolate linearly between them can break conformal symmetry and generate interesting Renormalization Group flows ...
Andrew Loveridge
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Support of dS/CFT correspondence from perturbations of three dimensional spacetime [PDF]
, 2002 We discuss the relation between bulk de Sitter three-dimensional spacetime and the corresponding conformal field theory at the boundary, in the framework of the exact quasinormal mode spectrum.
A. Lima-Santos +31 more
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Chern-Simons gravity dual of BCFT
Journal of High Energy Physics, 2021 In this paper we provide a Chern-Simons gravity dual of a two dimensional conformal field theory on a manifold with boundaries, so called boundary conformal field theory (BCFT).
Tadashi Takayanagi, Takahiro Uetoko
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