Reconstruction of field theory from excitation spectra of defects

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We show how to reconstruct a field theory from the spectrum of bound states on a topological defect. We apply our recipe to the case of kinks in 1+1 dimensions with one or two bound states. Our recipe successfully yields the sine-Gordon and λφ4 field theories when suitable bound state spectra are assumed. The recipe can also be used to globally reconstruct the inflaton potential of inflationary cosmology if the inflaton produces a topological defect. We discuss how defects can provide "smoking gun" evidence for inflationary models with flat potentials.

Original languageEnglish (US)
Article number043510
JournalPhysical Review D
Volume69
Issue number4
DOIs
StatePublished - 2004
Externally publishedYes

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defects
excitation
cosmology

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Reconstruction of field theory from excitation spectra of defects. / Vachaspati, Tanmay.

In: Physical Review D, Vol. 69, No. 4, 043510, 2004.

Research output: Contribution to journalArticle

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