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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1 to 2 of 2 (0.021 seconds)Spelling suggestions: "subject:"maskable"" "subject:"maskar""
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On the Construction and Traversability of Lorentzian WormholesSvensson, Maximilian January 2019 (has links)
In this literature review we discus and describe the theoretically predicted phenomena known as wormholes, where two different regions of space-time are joined by a “throat” or a “bridge”. If information or even an observer could be sent through the wormhole we refer to it as traversable. We argue that traversable wormholes demands negative energy densities and display a number of different constructions found within the field. Among these the orgional construction by EinsteinRosen and Morris-Thornes discussion on traversability. We also give a overview of the current state of the field by presenting to more recently published papers: “Casimir Energy of a Long Wormhole Throat” av Luke Buther och “Traversable Wormholes via a Double Trace Deformation” av Ping Gao, Daniel Louis Jafferis och Aron C.Wall.
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Quantum structure of holographic black holes / Kvantstruktur hos holografiska svarta hålRiedel Gårding, Elias January 2020 (has links)
We study a free quantum scalar field in the BTZ spacetime as a model of the AdS/CFT correspondence for black holes, and show the essential steps in computing Bogolyubov coefficients between modes on either side of the wormhole. As background, we review the BTZ geometry in standard, Kruskal and Poincaré coordinates, holographic renormalisation of the dual field theory and canonical quantisation in curved spacetime. / Vi studerar ett fritt skalärt kvantfält i BTZ-rumtiden som en modell av AdS/CFT-dualiteten för svarta hål och visar huvudstegen i beräkningen av Bogolyubov-koefficienter mellan moder på olika sidor av maskhålet. Som bakgrund redogör vi för BTZ-geometrin i standard-, Kruskal- och Poincarékoordinater, holografisk renormering av den duala fältteorin och kanonisk kvantisering i krökt rumtid.
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