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Studies of Asymptotic Symmetries at Null and Spatial Infinity

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dc.contributor.advisor Laddha, Alok en_US
dc.contributor.author AKSHAY, KHADSE en_US
dc.date.accessioned 2016-05-04T07:34:51Z
dc.date.available 2016-05-04T07:34:51Z
dc.date.issued 2016-05 en_US
dc.identifier.uri http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/599
dc.description.abstract In this thesis we study the relationship between Asymptotic symmetry group of (Asymptotically flat) space-times at Null and Spatial Infinity. We first review the basic framework concerning Null and Spatial Infinity and then discuss the notion of asymptotic symmetry groups in these two regimes. Former is known as the BMS group and the latter is known as SPI group developed by Ashtekar and Hansen\cite{ashtekarhansen}. Based on the formalism developed by Campiglia et al.\cite{campigliaalokmain} we then develop an approach to extend the BMS group at Null infinity to Spatial infinity. For so-called super translation subgroup of the BMS, we see how this extension precisely matches the corresponding supertranslation subgroup of the SPI group. As both the BMS and SPI groups are (semi-direct) products of super-translation groups with Lorentz group, our work shows how the SPI group is just a manifestation of BMS at spatial infinity. en_US
dc.description.sponsorship INSPIRE Fellowship en_US
dc.language.iso en en_US
dc.subject 2016
dc.subject Asymptotics en_US
dc.subject Asymptotic symmetries en_US
dc.subject Null Infinity en_US
dc.subject Spatial Infinity en_US
dc.title Studies of Asymptotic Symmetries at Null and Spatial Infinity 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 20111066 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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