On inflation in the heterotic superstring model

K. Maeda*, M. D. Pollock

*この研究の対応する著者

研究成果: Article査読

32 被引用数 (Scopus)

抄録

The possibility is considered of achieving inflation in the field-theory limit of the E8 X E8 superstring model, which is an N = 1 supergravity theory possessing a "no-scale" SU(n, 1)/SU(n) × U(1) structure. It is shown that neither type I inflation (due to higher-derivative terms O(R2)), nor inflation due to a SUSY-breaking gaugino-condensation potential, is possible, essentially because of the absence of free dimensionless parameters. Kaluza-Klein type inflation is ruled out because the internal space is Ricci flat. The occurence of type II inflation (due to some gauge singlet "inflation" field φ) depends upon the form of the superpotential F and of the Kähler potential G, but this also seems not to be possible, unless the >SU(n, 1) symmetry can be broken in a particular way. Hence, some new type of compactification scheme may be called for, or a different type of inflation.

本文言語English
ページ(範囲)251-256
ページ数6
ジャーナルPhysics Letters B
173
3
DOI
出版ステータスPublished - 1986 6 12
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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