% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Leedom:616625,
      author       = {Leedom, Jacob M. and Putti, Margherita and Righi, Nicole
                      and Westphal, Alexander},
      title        = {{P}reheating {A}xions in {S}tring {C}osmology},
      reportid     = {PUBDB-2024-06495, arXiv:2411.18496. DESY-24-163.
                      KCL-PH-TH/2024-60},
      year         = {2024},
      note         = {48 pages, 10 figures, v2: several important references
                      added},
      abstract     = {Certain inflationary models can feature periods of
                      preheating - an era preceding reheating during which
                      parametric resonance triggers an exponential production of
                      bosons. This non-perturbative process can have significant
                      impact on the history of our universe, with consequences
                      ranging from altered reheating channels to overproduction of
                      dark radiation to overclosure. In this work, we study
                      parametric resonance production of axions in string models
                      of inflation. We find that the kinetic couplings and
                      moduli-dependent axion masses give rise to generalizations
                      of the Mathieu equation. We study these generalizations and
                      determine the strength of parametric resonance created by
                      such couplings. We then apply this technology to fibre
                      inflation models in Type IIB orientifold compactifications.
                      We find that heavy axions can be copiously produced and
                      avoidance of overclosure results in constraints on the
                      typical fibre inflation parameter space.},
      cin          = {T},
      cid          = {I:(DE-H253)T-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611) / DFG
                      project G:(GEPRIS)390833306 - EXC 2121: Quantum Universe
                      (390833306) / SFB 1624 B03 - Modulräume und
                      Quantengravitation (B03) (531727554)},
      pid          = {G:(DE-HGF)POF4-611 / G:(GEPRIS)390833306 /
                      G:(GEPRIS)531727554},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2411.18496},
      howpublished = {arXiv:2411.18496},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2411.18496;\%\%$},
      doi          = {10.3204/PUBDB-2024-06495},
      url          = {https://bib-pubdb1.desy.de/record/616625},
}