论文标题
一个三个故事。无张力的弦和真空结构
A Tale of Three. Tensionless strings and vacuum structure
论文作者
论文摘要
在规范量化的前提下，我们重新检查了骨张力无拉的弦理论的量子结构。在经典理论中，世界表衡量标准和邦迪 - 米尔塞 - sachs（BMS）代数形成，因为残留的对称性在固定相当于保形仪表的张力等效物方面出现了。在量子制度中，我们在仔细检查中发现，有多种限制的方法来限制物理希尔伯特空间，这又导致了三种不同的无张力真空选择。我们详细分析了这些真空，评论了各个方面，例如中央费用及其周围的频谱。
Within the premise of canonical quantisation, we re-examine the quantum structure of bosonic tensionless string theory. In the classical theory, the worldsheet metric degenerates and the Bondi-Metnzer-Sachs (BMS) algebra arises as the residual symmetries on fixing the tensionless equivalent of the conformal gauge. In the quantum regime, we find, on careful examination, that there are multiple ways to impose constraints to restrict the physical Hilbert space, which in turn lead to three distinct choices of tensionless vacua. We analyse these vacua in detail, commenting on various aspects like the central charges and the spectrum around each of them.
