University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Unitarity of noncommutative field theories from string theory

Torrielli, A (2003) Unitarity of noncommutative field theories from string theory In: Conference on Spacetime and Fundamental Interactions: Quantum Aspects (In honor of A.P. Balachandran's 65th Birthday), 2003-05-26 - ?, Vietri sul Mare, Italy.

Full text not available from this repository.

Abstract

We improve the study of the lack of perturbative unitarity of noncommutative space-time quantum field theories derived from open string theory in electric backgrounds, enforcing the universality of the mechanism by which a tachyonic branch cut appears when the Seiberg-Witten limit freezes the string in an unstable vacuum. The main example is realized in the context of the on-shell four-tachyon amplitude of the bosonic string, and the dependence of the phenomenon on the brane-worldvolume dimension is analysed. We discuss the possibility of a proof in superstring theory, and finally mention the NCOS limit in this framework.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Authors :
NameEmailORCID
Torrielli, Aa.torrielli@surrey.ac.ukUNSPECIFIED
Date : 2003
Identification Number : https://doi.org/10.1142/S0217732303012775
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:17
Last Modified : 17 May 2017 15:02
URI: http://epubs.surrey.ac.uk/id/eprint/834746

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800