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Aspects of de-Sitter Conjectures, Inflation and Axions

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dc.contributor.advisor GHOSH, DIPTIMOY en_US
dc.contributor.author THAKUR, SHUBHAM MALLIK en_US
dc.date.accessioned 2020-06-16T09:00:48Z
dc.date.available 2020-06-16T09:00:48Z
dc.date.issued 2020-05 en_US
dc.identifier.uri http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/4728
dc.description.abstract In this thesis we study three interesting ideas in Particle Physics and Cosmology: de-Sitter conjectures, some aspects of Inflation and Axions as Dark matter. The de-Sitter conjectures are statements about consistency of Effective Field theories with Gravity. Effective Field Theories play a crucial role in describing physics at low energies. Thus, constraining the space of possibles EFTs by various Ultra Violets (UV) consistency requirements have been a very active field of research for many years. The “Swampland program” is one such example which tries to find the EFTs which can be completed into quantum gravity in the UV. This program has recently gained impetus because of a quantitative proposal ( “The de-Sitter Conjecture”) on what the scalar potential of a theory coupled to gravity must satisfy. This original proposal was subsequently revised to a “Refined de Sitter Conjecture” based on the entropy of de-Sitter space and the distance conjecture. In Master’s thesis, we study these consequences in Particle Physics and Cosmology, in particular in the context of Inflation, In the final part of the thesis, we also study the role of Axions in Cosmology in particular as Dark matter using the Misalignment mechanism. en_US
dc.language.iso en en_US
dc.subject de-Sitter Conjectures en_US
dc.subject Inflation en_US
dc.subject Axions en_US
dc.subject Slow roll en_US
dc.subject Kinetic misalignment en_US
dc.subject Normal misalignment en_US
dc.subject 2020 en_US
dc.title Aspects of de-Sitter Conjectures, Inflation and Axions en_US
dc.type Thesis en_US
dc.type.degree BS-MS en_US
dc.contributor.department Dept. of Physics en_US
dc.contributor.registration 20151033 en_US


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  • MS THESES [1705]
    Thesis submitted to IISER Pune in partial fulfilment of the requirements for the BS-MS Dual Degree Programme/MSc. Programme/MS-Exit Programme

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