Twisted Noncommutative Field Theory: Wick-Voros vs Moyal

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We present a comparison of the noncommutative field theories built using two different star products: Moyal and Wick-Voros (or normally ordered). We compare the two theories in the context of the noncommutative geometry determined by a Drinfeld twist, and the comparison is made at the level of Green's functions and S-matrix. We find that while the Green's functions are different for the two theories, the S-matrix is the same in both cases, and is different from the commutative case.
This paper was merged with arXiv:0807.1492 and has become arXiv:0810.2095. This has been published in Physical Review D 78.085007 (2008). The older version is available as arXiv:0807.1498v2

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High Energy Physics - Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/171286

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0807.1498
 http://arxiv.org/abs/0807.1498

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