Modulus D-term inflation

  • Kenji Kadota
  • Tatsuo Kobayashi
  • Ikumi Saga
  • Keigo Sumita
Open Access
Regular Article - Theoretical Physics


We propose a new model of single-field D-term inflation in supergravity, where the inflation is driven by a single modulus field which transforms non-linearly under the U(1) gauge symmetry. One of the notable features of our modulus D-term inflation scenario is that the global U(1) remains unbroken in the vacuum and hence our model is not plagued by the cosmic string problem which can exclude most of the conventional D-term inflation models proposed so far due to the CMB observations.


Cosmology of Theories beyond the SM String theory and cosmic strings 


Open Access

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Copyright information

© The Author(s) 2018

Authors and Affiliations

  1. 1.Center for Theoretical Physics of the Universe, Institute for Basic Science (IBS)DaejeonKorea
  2. 2.Department of PhysicsHokkaido UniversitySapporoJapan
  3. 3.Department of PhysicsWaseda UniversityTokyoJapan

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