Effective string theory revisited

Sergei Dubovsky, Raphael Flauger, Victor Gorbenko

    Research output: Contribution to journalArticlepeer-review


    We revisit the effective field theory of long relativistic strings such as confining flux tubes in QCD. We derive the Polchinski-Strominger interaction by a calculation in static gauge. This interaction implies that a non-critical string which initially oscillates in one direction gets excited in orthogonal directions as well. In static gauge no additional term in the effective action is needed to obtain this effect. It results from a one-loop calculation using the Nambu-Goto action. Non-linearly realized Lorentz symmetry is manifest at all stages in dimensional regularization. We also explain that independent of the number of dimensions non-covariant counterterms have to be added to the action in the commonly used zeta-function regularization.

    Original languageEnglish (US)
    Article number44
    JournalJournal of High Energy Physics
    Issue number9
    StatePublished - 2012


    • Lattice gauge field theories
    • Long strings
    • Space-time symmetries

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics


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