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000898716 020__ $$a9783030195076$$q(electronic book)
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000898716 0248_ $$a10.1007/978-3-030-19
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000898716 1001_ $$aSlade, Zoë H.,$$eauthor.
000898716 24510 $$aFundamental aspects of asymptotic safety in quantum gravity /$$cZoë H. Slade.
000898716 264_1 $$aCham :$$bSpringer,$$c[2019]
000898716 264_4 $$c©2019
000898716 300__ $$a1 online resource
000898716 336__ $$atext$$btxt$$2rdacontent
000898716 337__ $$acomputer$$bc$$2rdamedia
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000898716 4901_ $$aSpringer theses
000898716 500__ $$a"Doctoral thesis accepted by the University of Southampton, Southampton, UK."
000898716 504__ $$aIncludes bibliographical references.
000898716 5050_ $$aIntroduction -- Solutions to the reconstruction problem -- Background independence in a background dependent RG -- Asymptotic solutions in asymptotic safety -- Outlook.
000898716 506__ $$aAccess limited to authorized users.
000898716 520__ $$aAfter an extensive introduction to the asymptotic safety approach to quantum gravity, this thesis explains recent key advances reported in four influential papers. Firstly, two exact solutions to the reconstruction problem (how to recover a bare action from the effective average action) are provided. Secondly, the fundamental requirement of background independence in quantum gravity is successfully implemented. Working within the derivative expansion of conformally reduced gravity, the notion of compatibility is developed, uncovering the underlying reasons for background dependence generically forbidding fixed points in such models. Thirdly, in order to understand the true nature of fixed-point solutions, one needs to study their asymptotic behaviour. The author carefully explains how to find the asymptotic form of fixed point solutions within the f(R) approximation. Finally, the key findings are summarised and useful extensions of the work are identified. The thesis finishes by considering the need to incorporate matter into the formalism in a compatible way and touches upon potential opportunities to test asymptotic safety in the future.
000898716 588__ $$aOnline resource ; title from PDF title page (viewed July 15, 2019).
000898716 650_0 $$aQuantum gravity.
000898716 650_0 $$aAsymptotes.
000898716 77608 $$iPrint version:$$z3030195066$$z9783030195069$$w(OCoLC)1091845325
000898716 830_0 $$aSpringer theses.
000898716 852__ $$bebk
000898716 85640 $$3SpringerLink$$uhttps://univsouthin.idm.oclc.org/login?url=http://link.springer.com/10.1007/978-3-030-19507-6$$zOnline Access$$91397441.1
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