New conformal-metric solutions for continuous distributions of disclination-like defects
Abstract
In this paper, we develop a conformal formulation for two-dimensional geometries sourced by continuous distributions of topological defects, reducing the problem to a Poisson equation for the conformal factor. Throughout, we focus on radially symmetric, curvature-type (disclination-like) defect distributions in a torsion-free geometry. Closed-form solutions are obtained for Gaussian, exponential and power-law ([Formula: see text]) profiles. The Gaussian profile yields a regular core and an asymptotically flat far field. The exponential profile is treated on the punctured plane ([Formula: see text]), producing sharply localized curvature with finite total flux. For the [Formula: see text] case, we work on the punctured plane (or on annuli), obtaining an exterior logarithmic solution that encodes a conical geometry; more general power-law profiles require finite domains or decay to ensure integrability. In all cases, Gauss–Bonnet on annuli provides a global relation equating total curvature (holonomy/deficit angle) to the integrated defect density, while the [Formula: see text]-limit reproduces the standard conical geometry with distributional curvature. The framework offers a unified, physically motivated description of finite-core disclination-like defects relevant to analog gravity and two-dimensional material systems.
Fields of Study & Subjects
Black Holes and Theoretical Physics
Homotopy and Cohomology in Algebraic Topology
Geometric Analysis and Curvature Flows
Publication details
- Journal / source
- International Journal of Modern Physics A
- Publisher
- World Scientific Pub Co Pte Ltd
- Volume
- 41
- Issue
- 05
- Publication date
- 10 January 2026
- Language
- EN