Results 51 to 60 of about 691 (230)
Mathematical issues in eternal inflation [PDF]
Classical and Quantum Gravity, 2015 In this paper, we consider the problem of existence and uniqueness of solutions to the Einstein field equations for a spatially flat FLRW universe in the context of stochastic eternal inflation where the stochastic mechanism is modelled by adding a stochastic forcing term representing Gaussian white noise to the Klein-Gordon equation.
Kohli, Ikjyot Singh, Haslam, Michael C.
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Prescription for probabilities in eternal inflation [PDF]
Physical Review D, 2001 15 pages, 5 ...
Garriga Torres, Jaume +1 more
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Axion landscape and natural inflation
Physics Letters B, 2015 Multiple axions form a landscape in the presence of various shift symmetry breaking terms. Eternal inflation populates the axion landscape, continuously creating new universes by bubble nucleation.
Tetsutaro Higaki, Fuminobu Takahashi
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Holographic Probabilities in Eternal Inflation [PDF]
Physical Review Letters, 2006 In the global description of eternal inflation, probabilities for vacua are notoriously ambiguous. The local point of view is preferred by holography and naturally picks out a simple probability measure. It is insensitive to large expansion factors or lifetimes, and so resolves a recently noted paradox.
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Localization on the landscape and eternal inflation [PDF]
Classical and Quantum Gravity, 2014 21 ...
Mersini-Houghton, Laura +1 more
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Sliding naturalness: cosmological selection of the weak scale
Journal of High Energy Physics, 2022 We present a cosmological solution to the electroweak hierarchy problem. After discussing general features of cosmological approaches to naturalness, we extend the Standard Model with two light scalars very weakly coupled to the Higgs and present the ...
Raffaele Tito D’Agnolo, Daniele Teresi
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Entropic Inflation in Presence of Scalar Field
Universe, 2023 In spirit of the recently proposed four-parameter generalized entropy of apparent horizon, we investigate inflationary cosmology where the matter field inside of the horizon is dominated by a scalar field with a power law potential (i.e., the form of ϕn ...
Sergei D. Odintsov +2 more
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Universe, 2019 String/M theory is formulated in 10 and 11 space-time dimensions; in order to describe our universe, we must postulate that six or seven of the spatial dimensions form a small compact manifold. In 1985, Candelas et al.
Michael R. Douglas
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Eternal inflation: The inside story [PDF]
Physical Review D, 2006 Motivated by the lessons of black hole complementarity, we develop a causal patch description of eternal inflation. We argue that an observer cannot ascribe a semiclassical geometry to regions outside his horizon, because the large-scale metric is governed by the fluctuations of quantum fields.
Bousso, Raphael +2 more
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Exit from inflation with a first-order phase transition and a gravitational wave blast
Physics Letters B, 2015 In double-field inflation, which exploits two scalar fields, one of the fields rolls slowly during inflation whereas the other field is trapped in a meta-stable vacuum.
Amjad Ashoorioon
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