Phys. Rev. D 76, 125005 (2007) [14 pages]Fock space, quantum fields, and κ-Poincaré symmetriesReceived 26 July 2007; published 5 December 2007 We study the quantization of a linear scalar field, whose symmetries are described by the κ-Poincaré Hopf algebra, via deformed Fock space construction. The one-particle sector of the theory exhibits a natural (Planckian) cutoff for the modes of the field. At the “multiparticle” level the nontrivial coalgebra structure of κ-Poincaré leads to a deformed bosonization in the construction of Fock space states. These physical states carry energy-momentum charges which are divergenceless and obey a deformed dispersion relation. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.76.125005
DOI:
10.1103/PhysRevD.76.125005
PACS:
11.10.Nx, 02.20.Uw, 11.30.Cp
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