Quantum Effects during Inflation

Details Quantum Effects during Inflation Quantum Effects during Inflation

2003-10-27

arxiv.org/abs/astro-ph/0310757v1

Astronomy and Astrophysics

Astrophysics

6 pages, LaTeX2e, Proceedings for the 6th Workshop on QFT under the Influence of External Conditions, Norman, OK, Sept. 15-19,

Scientific paper

The expansion of spacetime alters the energy-time uncertainty principle, allowing virtual particles to persist longer than in flat space. For a given expansion the effect is largest for massless particles which are not conformally invariant. For a given particle type the effect is largest for inflation. I exhibit these two principles in the context of massless fermions which are Yukawa-coupled to massless scalars. I also review the many related examples which have been studied recently.

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