Chern-Simons-like Theories of Gravity

Wouter Merbis

Chern-Simons-like Theories of Gravity

Vertaalde titel van de bijdrage: Chern-Simons-achtige Theorieën van Zwaartekracht

Wouter Merbis

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Zwaartekracht is voor de meerderheid van de mensen wellicht de bekendste van alle natuurkrachten, maar voor een theoretische natuurkundige blijft het de meest enigmatische. In de hedendaagse natuurkunde zijn een aantal diepe mysteries gerelateerd aan de zwaartekracht. Bijvoorbeeld: wat is de juiste theorie van kwantumzwaartekracht? Hoe is het universum geëvolueerd? Wat zijn donkere energie en donkere materie? Een manier om zwaartekracht te begrijpen is als een theorie van spin 2 deeltjes, zogenaamde gravitonen. Het wordt verondersteld dat deze gravitonen massaloos zijn. In dit proefschrift wordt de mogelijkheid en levensvatbaarheid van theorieën die massieve gravitonen beschrijven onderzocht. Dit gebeurd in een vereenvoudigde omgeving, namelijk in ruimtes met twee ruimtelijke dimensies. Er worden theorieën geconstrueerd die de wisselwerkingen tussen massieve en massaloze gravitonen beschrijven op een consistente manier. Deze constructie is ongebruikelijk en nieuw en dit kan tot nieuwe toepassingen in de kosmologie leiden, mits de modellen succesvol naar hogere dimensies veralgemeniseerd kunnen worden.

Vertaalde titel van de bijdrage	Chern-Simons-achtige Theorieën van Zwaartekracht
Originele taal-2	English
Kwalificatie	Doctor of Philosophy
Toekennende instantie	Rijksuniversiteit Groningen
Begeleider(s)/adviseur	Bergshoeff, Eric, Supervisor
Datum van toekenning	26-sep.-2014
Uitgever	[S.n.]
Gedrukte ISBN's	978-90-367-7274-7
Elektronische ISBN's	978-90-367-7273-0
Status	Published - 2014

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title = "Chern-Simons-like Theories of Gravity",

abstract = "Gravity is perhaps the most well-known force of nature to the majority of the people, but to a theoretical physicist it remains the most enigmatic one. In modern day physics the gravitational force is related to a number of deep mysteries of the universe in which we live. For instance: what is the correct quantum theory of gravity? How did the universe evolve? What are dark matter and dark energy? One way to look at gravity is as a theory for interacting spin 2 particles called gravitons. These gravitons are thought to be massless particles. In this thesis we explore the possibility and feasibility of theories describing gravitons with a small mass in a simplified setting: in two spatial dimensions. Most notably we consider massive gravitons interacting with massless ones and develop a theoretical framework which is classically self-consistent. The way these models are constructed is novel and it may lead to new cosmological applications if it can be successfully generalized to three spatial dimensions.",

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AB - Gravity is perhaps the most well-known force of nature to the majority of the people, but to a theoretical physicist it remains the most enigmatic one. In modern day physics the gravitational force is related to a number of deep mysteries of the universe in which we live. For instance: what is the correct quantum theory of gravity? How did the universe evolve? What are dark matter and dark energy? One way to look at gravity is as a theory for interacting spin 2 particles called gravitons. These gravitons are thought to be massless particles. In this thesis we explore the possibility and feasibility of theories describing gravitons with a small mass in a simplified setting: in two spatial dimensions. Most notably we consider massive gravitons interacting with massless ones and develop a theoretical framework which is classically self-consistent. The way these models are constructed is novel and it may lead to new cosmological applications if it can be successfully generalized to three spatial dimensions.

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Chern-Simons-like Theories of Gravity

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