Products defined in the context of noncommutative gauge theory allow for an interpolation between exact results on tachyon potentials at zero and large background B-fields. Techniques for computations of effective actions are transposed from the framework
CPHT-RR048.0804
TachyonPotentialinaMagneticField
withAnomalousDimensions
arXiv:hep-th/0410180v1 17 Oct 2004PascalGrange´Centredephysiqueth´eoriquedel’Ecolepolytechnique,routedeSaclay,91128PalaiseauCedex,Francepascal.grange@cpht.polytechnique.frABSTRACT
Productsde nedinthecontextofnoncommutativegaugetheoryallowforaninterpolationbetweenexactresultsontachyonpotentialsatzeroandlargebackgroundB- elds.Techniquesforcomputationsofe ectiveactionsaretransposedfromtheframeworkofgaugetheorytotheframeworkofboundarystring eldtheory,resultingindeformationsofthenoncommutativetachyonpotentialbyanomalousdimensions.
October2004