QCD2 and the classical correspondence in the large-N limit

Lawrence M. Krauss, Joseph D. Lykken

Research output: Contribution to journalArticlepeer-review


It is shown that the large-N limit of quantum chromodynamics in twodimensions is determined by classical equations with boundary conditions. The nonperturbative quantum spectrum of mesonic bound states is obtained from a classical equation with a simple N-dependent boundary condition on the local charge density. The simplicity of the classical correspondence is shown to be directly tied to the simplicity of the space of gauge invariant operators of the theory. Implications for other large-N models are discussed.

Original languageEnglish (US)
Pages (from-to)397-402
Number of pages6
JournalPhysics Letters B
Issue number5
StatePublished - Oct 15 1981

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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