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Note on shape moduli stabilization, string gas cosmology and the swampland criteria
Gabrielle A Mitchell1, Robert Brandenberger1
1Department of Physics, McGill University, Montréal, QC H3A 2T8 Canada.
The European Physical Journal. C, Particles and Fields
|January 28, 2021
Summary
Simple shape modulus fields in String Gas Cosmology are stabilized by string modes. The resulting effective potential satisfies the de Sitter conjecture, a key swampland criterion for superstring theory consistency.
Area of Science:
- String theory
- Cosmology
- Theoretical physics
Background:
- String Gas Cosmology provides a framework for studying early universe physics.
- Stabilization of scalar fields (moduli) is crucial for realistic cosmological models.
- The swampland criteria distinguish effective field theories consistent with string theory.
Purpose of the Study:
- To investigate the stabilization mechanism of the simplest shape modulus fields in String Gas Cosmology.
- To determine the effective potential for these stabilized fields.
- To test whether the resulting effective field theory adheres to the de Sitter conjecture.
Main Methods:
- Incorporating string winding and momentum modes into the theoretical framework.
- Calculating the effective potential for the shape modulus fields.
- Analyzing the properties of the effective potential in relation to the de Sitter conjecture.
Main Results:
- The simplest shape modulus fields are naturally stabilized by string winding and momentum modes.
- The calculated effective potential for these fields obeys the de Sitter conjecture.
- This finding suggests consistency with superstring theory.
Conclusions:
- The stabilization of shape modulus fields in String Gas Cosmology is achieved through string modes.
- The effective potential satisfies the de Sitter conjecture, a crucial swampland criterion.
- This work provides evidence for the consistency of String Gas Cosmology with superstring theory.
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