Journal article
Self-tracking solutions for asymptotic scalar fields
- Abstract:
- We explore the dynamics of pure scalar fields rolling on an exponential potential in the absence of any additional background fluid and demonstrate the existence of self-tracking solutions in which the self-perturbations of the scalar field act as an effective radiation background. The validity of these solutions is demonstrated through both analytic techniques and numerical simulations using CosmoLattice. We discuss applications to string cosmologies with significant trans-Planckian field excursions between inflation and BBN, including the required initial level of scalar perturbations to avoid overshoot.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 652.4KB, Terms of use)
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- Publisher copy:
- 10.1007/jhep12(2025)135
Authors
+ Science and Technology Facilities Council
More from this funder
- Funder identifier:
- https://ror.org/057g20z61
- Publisher:
- Springer
- Journal:
- Journal of High Energy Physics More from this journal
- Volume:
- 2025
- Issue:
- 12
- Article number:
- 135
- Publication date:
- 2025-12-17
- Acceptance date:
- 2025-11-14
- DOI:
- EISSN:
-
1029-8479
- ISSN:
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1126-6708
- Language:
-
English
- Keywords:
- Pubs id:
-
2352823
- Local pid:
-
pubs:2352823
- Source identifiers:
-
3580727
- Deposit date:
-
2025-12-19
- ARK identifier:
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Terms of use
- Copyright date:
- 2025
- Licence:
- CC Attribution (CC BY)
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