Communications in Mathematical Physics

, Volume 268, Issue 3, pp 621–672 | Cite as

String-Localized Quantum Fields and Modular Localization

  • Jens Mund
  • Bert Schroer
  • Jakob YngvasonEmail author


We study free, covariant, quantum (Bose) fields that are associated with irreducible representations of the Poincaré group and localized in semi-infinite strings extending to spacelike infinity. Among these are fields that generate the irreducible representations of mass zero and infinite spin that are known to be incompatible with point-like localized fields. For the massive representations and the massless representations of finite helicity, all string-localized free fields can be written as an integral, along the string, of point-localized tensor or spinor fields. As a special case we discuss the string-localized vector fields associated with the point-like electromagnetic field and their relation to the axial gauge condition in the usual setting.


Growth Order Modular Localization Wigner Representation Haag Duality Positive Energy Representation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.Departamento de Física, ICEUniversidade Federal de Juiz de ForaJuiz de ForaBrazil
  2. 2.CBPFRio de JaneiroBrazil
  3. 3.Institut für Theoretische PhysikFU-BerlinBerlinGermany
  4. 4.Erwin Schrödinger Institute for Mathematical PhysicsViennaAustria
  5. 5.Institut für Theoretische PhysikUniversität WienViennaAustria

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