D-brane and Gauge Invariance in Closed String Field Theory
نویسندگان
چکیده
We construct a system of bosonic closed string field theory coupled to a Dbrane. The interaction between the D-brane and closed string field is introduced using the boundary state which is a function of constant field strength Fμν and the tilt θ μ of the D-brane. We find that the gauge invariance requirement on the system determines the (Fμν , θ i μ)-dependence of the normalization factor of the boundary state as well as the form of the purely (Fμν , θ i μ) term of the action. Correspondence between the action in the present formalism and the low energy effective action (bulk + D-brane actions) in the σ-model approach is studied. [email protected] Supported in part by Grant-in-Aid for Scientific Research from Ministry of Education, Science and Culture (#3160). [email protected] Supported in part by Grant-in-Aid for Scientific Research from Ministry of Education, Science and Culture (#07640394).
منابع مشابه
D-branes and Closed String Field Theory
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