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Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
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Published on: May 9, 2021

A natural framework for chaotic inflation.

Nemanja Kaloper1, Lorenzo Sorbo

  • 1Department of Physics, University of California, Davis, California 95616, USA.

Physical Review Letters
|April 28, 2009
PubMed
Summary
This summary is machine-generated.

Inflation naturally occurs in theories mixing an axionlike field with a 4-form. This mechanism generates a massive, protected axion, enabling slow-rolling inflation similar to chaotic models.

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Area of Science:

  • Cosmology
  • Theoretical Physics
  • Particle Physics

Background:

  • Inflationary cosmology is a leading paradigm for the early universe.
  • Axionlike fields and 4-forms are theoretical constructs in high-energy physics.
  • Understanding the origins of cosmic inflation requires exploring beyond the Standard Model physics.

Purpose of the Study:

  • To investigate a novel mechanism for cosmic inflation.
  • To explore the role of axionlike fields and 4-forms in early universe cosmology.
  • To demonstrate the natural occurrence of quadratic potential inflation.

Main Methods:

  • Theoretical modeling of scalar fields and their interactions.
  • Analysis of symmetry breaking in 4-form background fields.
  • Investigating the dynamics of axion potential during inflation.

Main Results:

  • Inflation with a quadratic potential arises naturally from the mixing of an axionlike field and a 4-form.
  • The axion acquires a mass protected by shift symmetry, with spontaneous breaking by 4-form backgrounds.
  • A minilandscape is formed by 4-form fluxes that can change via membrane emission.

Conclusions:

  • This model provides a natural framework for chaotic inflation.
  • The interplay between axions and 4-forms offers a viable pathway for early universe cosmology.
  • The proposed mechanism connects fundamental theoretical concepts to observable cosmological phenomena.