Algebraic approach to multiple defects on the line and application to Casimir force

E. Ragoucy; M. Mintchev

Algebraic approach to multiple defects on the line and application to Casimir force

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arxiv 0705.1322 v1 pith:XNLHDAN2 submitted 2007-05-09 hep-th cond-mat.othermath-phmath.MP

M. Mintchev , E. Ragoucy This is my paper

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keywords defectsalgebraicapplicationcasimirfieldforcelinescalar

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An algebraic framework for quantization in presence of arbitrary number of point-like defects on the line is developed. We consider a scalar field which interacts with the defects and freely propagates away of them. As an application we compute the Casimir force both at zero and finite temperature. We derive also the charge density in the Gibbs state of a complex scalar field with defects. The example of two delta-defects is treated in detail.

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hep-th 2025-07 conditional novelty 4.0 of 10

A boundary-QFT analysis shows that curved bulk metrics create local edge velocities in topological models and that fracton and linearized-gravity theories carry Kac-Moody boundary algebras.

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