6 papers · 1 filter
No parity anomaly in massless QED3: a BPHZL approach
Oswaldo M. Del Cima, Daniel H. T. Franco, Olivier Piguet +1
In this letter we call into question the perturbatively parity breakdown at 1-loop for the massless QED_3 frequently claimed in the literature. As long as perturbative quantum fiel…
On the Borchers Class of a Non-Commutative Field
Daniel H. T. Franco
In this paper, we arrive at the notion of equivalence classes of a non-commutative field exploring some ideas by Soloviev to nonlocal quantum fields. Specifically, an equivalence r…
A New Derivation of the CPT and Spin-Statistics Theorems in Non-Commutative Field Theories
Daniel H. T. Franco, Caio M. M. Polito
We propose an alternative axiomatic description for non-commutative field theories (NCFT) based on some ideas by Soloviev to nonlocal quantum fields. The local commutativity axiom…
Microlocal Analysis and Renormalization in Finite Temperature Field Theory
D. H. T. Franco, J. L. Acebal
We reassess the problem of renormalization in finite temperature field theory (FTFT). A new point of view elucidates the relation between the ultraviolet divergences for T=0 and $T…
Supersymmetric Field-Theoretic Models on a Supermanifold
Daniel H. T. Franco, Caio M. M. Polito
We propose the extension of some structural aspects that have successfully been applied in the development of the theory of quantum fields propagating on a general spacetime manifo…
Comment on ``On spin-1 massive particles coupled to a Chern-Simons field''
O. M. Del Cima, D. H. T. Franco, J. A. Helayel-Neto +1
In this comment we discuss some serious inconsistencies presented by Gomes, Malacarne and da Silva in their paper, Phys.Rev. D60 (1999) 125016 (hep-th/9908181).