Comments on hamiltonian formalism of AdS/CFT correspondence

Toshio Nakatsu, Naoto Yokoi

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


As a toy model to search for Hamiltonian formalism of the AdS/CFT correspondence, we examine a Hamiltonian formulation of the AdS2/ CFT1 correspondence emphasizing unitary representation theory of the symmetry. In the course of a canonical quantization of the bulk scalars, a particular isomorphism between the unitary irreducible representations in the bulk and boundary theories is found. This isomorphism defines the correspondence of field operators. It states that field operators of the bulk theory are field operators of the boundary theory by taking their boundary values in a specific way. The Euclidean continuation provides an operator formulation on the hyperbolic coordinates system. The associated Fock vacuum of the bulk theory is located at the boundary, thereby identified with the boundary CFT vacuum. The correspondence is interpreted as a simple mapping of the field operators acting on this unique vacuum. Generalization to higher dimensions is speculated.

Original languageEnglish
Pages (from-to)147-159
Number of pages13
JournalModern Physics Letters A
Issue number2
Publication statusPublished - 1999 Jan 20
Externally publishedYes

ASJC Scopus subject areas

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


Dive into the research topics of 'Comments on hamiltonian formalism of AdS/CFT correspondence'. Together they form a unique fingerprint.

Cite this