重新审视VSFT
VSFT revisited
摘要：
从基于$K B c$子代数的现代解析方法的角度，讨论了开弦场论中纯鬼动力学算符的有效性。在基于单位元的快子真空解周围规范固定弦场论的规范，得到了一个纯粹的幽灵动力学算符。结果表明，所得到的动力学算子并不等价于文献中广泛研究的共形鬼点的中点插入。我们还发现，运动方程不允许任何非平凡的解决方案。
英文摘要：
We argue validity of purely ghost kinetic operator in open string field theory from the perspective of the modern analytic method based on the $K B c$ subalgebra. A purely ghost kinetic operator is obtained as a result of gauge fixing string field theory around the identity based tachyon vacuum solution. It is shown that the obtained kinetic operator is not equivalent to the midpoint insertion of the conformal ghost which is extensively studied in literature. We also find that the equation of motion does not allow any nontrivial solutions.
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