Approaches to Quantum Gravity: String field theory
Approaches to Quantum Gravity: String field theory
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量子引力的方法：弦场论
DOI：
10.1017/cbo9780511575549.014
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
Washington Taylor
中科院分区：
文献类型：
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作者：
Washington Taylor
这篇对弦场理论的基本介绍强调了目前所理解的量子引力的这种方法的特点和局限性。弦场论是弦理论在时空中的一种表述，它具有无限多的质量场。虽然现有的弦场理论的构造需要围绕固定的时空背景进行扩展，但该理论原则上是与背景无关的，因为在该理论中不同的背景可以被实现为不同的场配置。弦场理论是迄今为止发展起来的唯一弦形式主义，原则上，它有可能系统地解决涉及多个渐近不同的弦背景的问题。因此，尽管它还没有被很好地定义为量子理论，但弦场理论最终可能有助于理解弦理论中与宇宙学有关的问题。
This elementary introduction to string field theory highlights the features and the limitations of this approach to quantum gravity as it is currently understood. String field theory is a formulation of string theory as a field theory in space-time with an infinite number of massive fields. Although existing constructions of string field theory require expanding around a fixed choice of space-time background, the theory is in principle background-independent, in the sense that different backgrounds can be realized as different field configurations in the theory. String field theory is the only string formalism developed so far which, in principle, has the potential to systematically address questions involving multiple asymptotically distinct string backgrounds. Thus, although it is not yet well defined as a quantum theory, string field theory may eventually be helpful for understanding questions related to cosmology in string theory.
DOI：
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发表时间：
2021
期刊：
影响因子：
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作者：
Aikawa Masayuki;Maehashi Takuto;Ichinkhorloo Dagvadorj;Ebata Shuichiro;Komori Yukiko;Haba Hiromitsu;Isao Kishimoto
通讯作者：
Isao Kishimoto