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We formulate the conformal packing problem and dual packing problem in analogy to similar problems for binary codes and lattices. We obtain explicit numerical upper bounds for the minimal dual conformal weight of a unitary strongly-rational…

Mathematical Physics · Physics 2019-09-13 Gerald Höhn

Quantum many-body systems have a rich structure in the presence of boundaries. We study the groundstates of conformal field theories (CFTs) and Lifshitz field theories in the presence of a boundary through the lens of the entanglement…

Strongly Correlated Electrons · Physics 2022-09-07 Clément Berthiere , William Witczak-Krempa

We consider quadrangulations with a boundary and derive explicit expressions for the generating functions of these maps with either a marked vertex at a prescribed distance from the boundary, or two boundary vertices at a prescribed mutual…

Mathematical Physics · Physics 2010-09-03 J. Bouttier , E. Guitter

We propose a systematic method to extract conformal loop models for rational conformal field theories (CFT). Method is based on defining an ADE model for boundary primary operators by using the fusion matrices of these operators as…

Statistical Mechanics · Physics 2015-05-13 M. A. Rajabpour

The conformal bootstrap is applied to percolation and dilute self-avoiding polymers, two theories with Virasoro central charge $c=0$ in two dimensions. In both cases we propose a spectrum of operators motivated by Virasoro symmetry which is…

High Energy Physics - Theory · Physics 2019-01-03 Andre LeClair , Joshua Squires

We propose the notion of integrable boundary in the context of discrete integrable systems on quad-graphs. The equation characterizing the boundary must satisfy a compatibility equation with the one characterizing the bulk that we called…

Mathematical Physics · Physics 2014-02-13 Vincent Caudrelier , Nicolas Crampé , Qi Cheng Zhang

Topological materials are renowned for their ability to harbor states localized at their peripheries, such as surfaces, edges, and corners. Accompanying these states, fractional charges appear on peripheral unit cells. Recently,…

Superconductivity · Physics 2024-05-24 Qinghua He , Jinhua Sun , Hai-Yao Deng , Katsunori Wakabayashi , Feng Liu

We consider the evolution of a bulk scalar field in anti-de Sitter (AdS) spacetime linearly coupled to a scalar field on a de Sitter boundary brane. We present results of a spectral analysis of the system, and find that the model can…

High Energy Physics - Theory · Physics 2008-11-26 Antonio Cardoso , Kazuya Koyama , Andrew Mennim , Sanjeev S. Seahra , David Wands

We construct unitary, stable, and interacting conformal boundary conditions for a free massless scalar in four dimensions by coupling it to edge modes living on a boundary. The boundary theories we consider are bosonic and fermionic QED$_3$…

High Energy Physics - Theory · Physics 2024-04-03 Lorenzo Di Pietro , Edoardo Lauria , Pierluigi Niro

Motivated by the AdS/CFT correspondence, we use Monte Carlo simulation to investigate the Ising model formulated on tessellations of the two-dimensional hyperbolic disk. We focus in particular on the behavior of boundary-boundary…

High Energy Physics - Lattice · Physics 2022-10-05 Muhammad Asaduzzaman , Simon Catterall , Jay Hubisz , Roice Nelson , Judah Unmuth-Yockey

The conformal anomaly and the Virasoro algebra are fundamental aspects of 2D conformal field theory and conformally covariant models in planar random geometry. In this article, we explicitly derive the Virasoro algebra from an…

Mathematical Physics · Physics 2025-05-06 Sid Maibach , Eveliina Peltola

This paper investigates the asymptotic boundary behavior of the holomorphic bisectional curvature for weighted Bergman metrics. By characterizing extremal functions via $L^2$-orthogonal projections, we establish an explicit formula for the…

Complex Variables · Mathematics 2026-05-19 Sungmin Yoo

The Riemann Mapping Theorem states existence of a conformal homeomorphism $\varphi$ of a simply connected plane domain $\Omega\subset\mathbb C$ with non-empty boundary onto the unit disc $\mathbb D\subset \mathbb C$. In the first part of…

Functional Analysis · Mathematics 2013-05-21 V. Gol'dshtein , A. Ukhlov

In odd dimensions the integrated conformal anomaly is entirely due to the boundary terms \cite{Solodukhin:2015eca}. In this paper we present a detailed analysis of the anomaly in five dimensions. We give the complete list of the boundary…

High Energy Physics - Theory · Physics 2024-12-03 Amin Faraji Astaneh , Sergey N. Solodukhin

We continue the study of boundary operators in the dense O(n) model on the random lattice. The conformal dimension of boundary operators inserted between two JS boundaries of different weight is derived from the matrix model description.…

High Energy Physics - Theory · Physics 2009-11-13 J. -E. Bourgine

We study the dilute $A_2^{(2)}$ loop models on the geometry of a strip of width $N$. Two families of boundary conditions are known to satisfy the boundary Yang-Baxter equation. Fixing the boundary condition on the two ends of the strip…

Mathematical Physics · Physics 2023-03-29 Florence Boileau , Alexi Morin-Duchesne , Yvan Saint-Aubin

The dimer model on a strip is considered as a Yang-Baxter \mbox{integrable} six vertex model at the free-fermion point with crossing parameter $\lambda=\tfrac{\pi}{2}$ and quantum group invariant boundary conditions. A one-to-many mapping…

Mathematical Physics · Physics 2020-02-19 Paul A. Pearce , Jørgen Rasmussen , Alessandra Vittorini-Orgeas

We investigate the higher-order bulk-boundary correspondence in a family of chiral-symmetric Bloch Hamiltonians with anticommuting mirror symmetries. These models generalize the $\pi$-flux square lattice, the prototypical topological…

Mesoscale and Nanoscale Physics · Physics 2025-12-05 Suman Aich , Babak Seradjeh

Critical systems are described by conformal field theories, whose dynamics can be exactly solved in two dimensions. In the presence of a boundary, with the so-called method of images it is possible to study the surface critical behaviour of…

High Energy Physics - Theory · Physics 2007-05-23 Valentina Riva

We derive a tensorial formula for a fourth-order conformally invariant differential operator on conformal 4-manifolds. This operator is applied to algebraic Weyl tensor densities of a certain conformal weight, and takes its values in…

High Energy Physics - Theory · Physics 2009-11-07 Thomas Branson , A. Rod Gover