Gauge String Field Theory of Superstring

1. 在之前我们京都组构建的所谓HIKKO的开闭弦场理论中，包含了一个非物理的弦长参数alpha，它导致了在环路振幅水平产生无穷大因子的问题。我们已经证明，这个问题可以通过引入一个玻色和两个费米非物理坐标，使α成为“四重奏”成员的协变光锥技术来解决。阐明了构造“协变光锥弦场理论”的一般步骤，从而得到一致的开闭弦规范场理论。我们在威腾的开放超弦场论的雷蒙区发现了新的规范对称性。这些新的规范对称性对于Witten理论的一致性具有重要意义，并将在构建闭合超弦场理论和异质弦场理论中发挥重要作用。我们成功地构造了一个不包含非物理（零模式）变量的非多项式闭弦场理论。明确构造了全非多项式作用，并证明其规范不变。

1. In the so-called HIKKO's open and closed string field theory, which we Kyoto group constructed previously, an unphysical string-length parameter alpha is contained and it caused a problem of yielding a factor of infinity at the loop amplitude level. We have shown that this problem can be solved by the technique of covariantized light-cone in which alpha is made a member of "quartet" by introducing one bose and two fermi unphysical coordinates. We clarified the general procedure for constructing "covariantized light- cone string field theory" to obtain consistent open and closed string gauge field theories.2. We have found new gauge symmetries hidden in the Ramond sector of Witten's open superstring field theory. These new gauge symmetries are important for the consistency of Witten's theory and will play an essential role in constructing closed super and heterotic string field theories.3. We have succeeded in constructing a nonpolynomical closed string field theory which contains no unphysical (zero-mode) variables at all. The full nonpolynomial action is constructed explicitly and is shown gauge- invariant.