1998年6月11日 · We consider the compactification of the E8xE8 heterotic string on a K3 surface with "the spin connection embedded in the gauge group" and the dual picture in the type IIA …

1996年6月20日 · We present a systematic way of generating F-theory models dual to nonperturbative vacua (i.e., vacua with extra tensor multiplets) of heterotic E8xE8 strings …

In string theory, a heterotic string is a closed string (or loop) which is a hybrid ('heterotic') of a superstring and a bosonic string. There are two kinds of heterotic superstring theories, the …

2019年1月25日 · Assuming the strongest condition is that the worldsheet CFT (?) must be built on an even, self-dual lattice of dimension 8k (in order to satisfy a modular invariant partition …

2014年9月8日 · We study two phases of a heterotic standard model, obtained from a Calabi-Yau compactification of the E8xE8 heterotic string, in the context of the associated four …

2020年3月12日 · 如果你感兴趣，可以参考一下这五种弦理论的名字是：Type 1、Type IIA、Type IIB、SO (32)heterotic和E8xE8 heterotic。 它们显然不可能都是对宇宙的正确描述，但哪一种 …

E8xE8是10维superstring的规范群。 在4维里面，我们标准模型是SU (3)xSU (2)xU (1)。 10维supertring在紧致化到4维之后，E8会分解到比如E6，然后E6包含标准模型的规范群，所以可 …

2018年2月12日 · Can someone at least gives a summary of the constrains in the E8xE8 heterotic superstring theory? Many sources are mostly outdated that was written decades ago when not …

2019年1月26日 · Assuming the strongest condition is that the worldsheet CFT (?) must be built on an even, self-dual lattice of dimension 8k (in order to satisfy a modular invariant partition …

2009年8月14日 · We discuss toroidal orbifolds of the E8XE8 heterotic string, in which the free fermionic Higgs-matter splitting is implemented by a shift in the internal lattice coupled with the …