UV / IR mixing via closed strings and tachyonic instabilities
Oct, 200123 pages
Published in:
- Nucl.Phys.B 632 (2002) 240-256
e-Print:
- hep-th/0110113 [hep-th]
Report number:
- CERN-TH-2001-272
Citations per year
Abstract:
We discuss UV/IR mixing effects in non-supersymmetric non-commutative U(N) gauge theories. We show that the singular (non-planar) terms in the 2- and 3-point functions, namely the poles and the logarithms, can be obtained from a manifestly gauge invariant effective action. The action, which involves open Wilson line operators, can be derived from closed strings exchange between two stacks of D-branes. Our concrete example is type 0B string theory and the field theory that lives on a collection of N electric D3-branes. We show that one of the closed string modes that couple to the field theory operator which is responsible for the infrared poles, is the type 0 tachyon.Note:
- 24 pages, Latex. 2 figures. v2: comments after eq.(44) and references added. To appear in Nucl.Phys.B Report-no: CERN-TH/2001-272
- gauge field theory: U(N)
- Higgs model
- differential geometry: noncommutative
- two-point function
- n-point function: 3
- effective action
- analytic properties
- string: closed
- tachyon
- membrane model: D-brane
References(42)
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