Generalized Dirichlet Normal Ordering in Open Bosonic Strings

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理论物理通讯 ›› 2009, Vol. 51 ›› Issue (01) : 110-114.

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Generalized Dirichlet Normal Ordering in Open Bosonic Strings

CAO Zhen-Bin and DUAN Yi-Shi

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Abstract

Generally, open string boundary conditions play a nontrivial role in string theory. For example, in the presence of an antisymmetric tensor background field, they will lead the spacetime coordinates noncommutative. In this paper, we mainly discuss how to build up a generalized Dirichlet normal ordered product of open bosonic string
embedding operators that satisfies both the equations of motion and the generalized Dirichlet boundary conditions at the quantum level in the presence of an antisymmetric background field, as the generalized Neumann case has already been discussed in the literature. Further, we also give a brief check of the consistency
of the theory under the newly introduced normal ordering.

导出引用

CAO Zhen-Bin and DUAN Yi-Shi. Generalized Dirichlet Normal Ordering in Open Bosonic Strings[J]. 理论物理通讯, 2009, 51(01): 110-114

CAO Zhen-Bin and DUAN Yi-Shi. Generalized Dirichlet Normal Ordering in Open Bosonic Strings[J]. Communications in Theoretical Physics, 2009, 51(01): 110-114

中图分类号： 11.10.Nx 11.25.-w