Open-Closed String Field Theory in the Background B-Field

Details Open-Closed String Field Theory in the Background B-Field Open-Closed String Field Theory in the Background B-Field

2000-05-09

arxiv.org/abs/hep-th/0005080v2

Prog.Theor.Phys. 104 (2000) 1267-1287

Physics

High Energy Physics

High Energy Physics - Theory

25 pages, lanlmac, minor corrections

Scientific paper

10.1143/PTP.104.1267

In this paper, we study open-closed string field theory in the background B-field in the so-called alpha=p^{+} formulation. The string field theory in the infrared gives noncommutative gauge theory in the open string sector. Since this theory includes closed string fields as dynamical variables, we can obtain another string field theory in the same background through the condensation of closed string fields, whose low-energy effective action does not show the noncommutativity of spacetime. Although we have two string field theories in the same background, we show that these theories are equivalent. In fact, we give the unitary transformation from string fields in one of them to string fields in the other.

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