DFR Perturbative Quantum Field Theory on Quantum Space Time, and Wick Reduction

  • Gherardo Piacitelli
Part of the Progress in Mathematics book series (PM, volume 251)


We discuss the perturbative approach à la Dyson to a quantum field theory with nonlocal self-interaction :φ⋆···⋆φ, according to Doplicher, Fredenhagen and Roberts (DFR). In particular, we show that the Wick reduction of nonlocally time-ordered products of Wick monomials can be performed as usual, and we discuss a very simple Dyson diagram.


Asymptotic Expansion Local Case Perturbative Approach Nonlocal Theory Ordinary Function 


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© Birkhäuser Verlag 2007

Authors and Affiliations

  • Gherardo Piacitelli
    • 1
  1. 1.I.P. “De Sandrinelli”TriesteItalia

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