Probing the Primordial Universe using Massive Fields
Xingang Chen, Mohammad Hossein Namjoo, Yi Wang
TL;DR
This paper reviews how massive fields can be used as a model-independent tool to probe the primordial universe and test inflation theories, highlighting their unique importance in understanding early universe physics.
Contribution
It emphasizes the role of massive fields in model-independent approaches to probe inflation and the early universe, providing a summary based on recent discussions.
Findings
Massive fields are crucial for model-independent inflation tests.
They offer a unique way to probe the primordial universe.
The review summarizes recent developments in this area.
Abstract
Inflation models are numerous. It is extremely difficult, if possible at all, to identify the actual underlying inflation model of our primordial universe. Thus, for the purpose of proving/falsifying inflation and using inflation to probe new physics, model independent approaches are crucial. Massive fields play a uniquely important role in those missions. This short review is based on a talk by one of the authors (YW) in the 2nd LeCosPA Symposium.
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