Perry MJ, Potting R
Physics Department, Indiana University, Bloomington, Indiana 47405, USA.
Phys Rev Lett. 2000 May 15;84(20):4541-4. doi: 10.1103/PhysRevLett.84.4541.
The off-shell structure of the string sigma model is investigated. In the open bosonic string, nonperturbative effects appear to depend crucially on the regularization scheme. A scheme retaining the notion of string width reproduces the structure of Witten's string field theory.
研究了弦西格玛模型的离壳结构。在开弦玻色子弦中,非微扰效应似乎关键取决于正则化方案。一种保留弦宽度概念的方案重现了维滕弦场论的结构。