On the stringy nature of winding modes in noncommutative thermal field theories
- G. Arcioni(,)
- Turin U. and
- INFN, Turin and
- Utrecht U.
- ,
- Joaquim Gomis(,)
- Barcelona U. and
- Barcelona, IFAE and
- CERN
24 pages
Published in:
- JHEP 06 (2000) 038
e-Print:
- hep-th/0004080 [hep-th]
Report number:
- CERN-TH-2000-114,
- DFTT-15-2000,
- SPIN-2000-13,
- UB-ECM-PF-00-06,
- ITFA-2000-08
Citations per year
Abstract:
We show that thermal noncommutative field theories admit a version of `channel duality' reminiscent of open/closed string duality, where non-planar thermal loops can be replaced by an infinite tower of tree-level exchanges of effective fields. These effective fields resemble closed strings in three aspects: their mass spectrum is that of closed-string winding modes, their interaction vertices contain extra moduli, and they can be regarded as propagating in a higher-dimensional `bulk' space-time. In noncommutative models that can be embedded in a D-brane, we show the precise relation between the effective `winding fields' and closed strings propagating off the D-brane. The winding fields represent the coherent coupling of the infinite tower of closed-string oscillator states. We derive a sum rule that expresses this effective coupling in terms of the elementary couplings of closed strings to the D-brane. We furthermore clarify the relation between the effective propagating dimension of the winding fields and the true codimension of the D-brane.- differential geometry: noncommutative
- phi**n model: 4
- duality
- perturbation theory: higher-order
- Feynman graph: planar
- string: open
- string: closed
- finite temperature
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