From defects to boundaries

Z. Bajnok, A. George

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

In this paper we describe how relativistic field theories containing defects are equivalent to a class of boundary field theories. As a consequence previously derived results for boundaries can be directly applied to defects, these results include reduction formulas, the Coleman-Thun mechanism and Cutcosky rules. For integrable theories the defect crossing unitarity equation can be derived and defect operator found. For a generic purely transmitting impurity we use the boundary bootstrap method to obtain solutions of the defect Yang-Baxter equation. The groundstate energy on the strip with defects is also calculated.

Original languageEnglish
Pages (from-to)1063-1077
Number of pages15
JournalInternational Journal of Modern Physics A
Volume21
Issue number5
DOIs
Publication statusPublished - Feb 20 2006

Fingerprint

Defects
defects
Field Theory
Reduction formula
Yang-Baxter Equation
Unitarity
Ground State Energy
Bootstrap Method
Impurities
Strip
strip
operators
impurities
Operator
energy

Keywords

  • Boundaries
  • Defects
  • Quantum field theory

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Mathematical Physics
  • Nuclear and High Energy Physics

Cite this

From defects to boundaries. / Bajnok, Z.; George, A.

In: International Journal of Modern Physics A, Vol. 21, No. 5, 20.02.2006, p. 1063-1077.

Research output: Contribution to journalArticle

Bajnok, Z. ; George, A. / From defects to boundaries. In: International Journal of Modern Physics A. 2006 ; Vol. 21, No. 5. pp. 1063-1077.
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