On the Creation of the Universe via Ekpyrotic Instantons
arXiv:1406.5896 · doi:10.1016/j.physletb.2015.01.028
Abstract
We present a new class of complex instantons in the context of ekpyrotic cosmological theories. These instantons, which satisfy the "no-boundary" boundary conditions, describe the emergence of a classical, contracting universe out of nothing. The ekpyrotic attractor is essential in guaranteeing an evolution towards a real, Lorentzian history of the universe. In the context of the no-boundary proposal, the relative probability for such ekpyrotic histories compared to inflationary ones is very high -- in fact, assuming a bounce can be incorporated, these new instantons currently describe the most likely origin of the universe.
arXiv comment5 pages
References in corpus (16)
- The Ekpyrotic Universe: Colliding Branes and the Origin of the Hot Big Bang
- Cosmic Evolution in a Cyclic Universe
- Ekpyrotic and Cyclic Cosmology
- New Ekpyrotic Cosmology
- G-Bounce
- A smooth bouncing cosmology with scale invariant spectrum
- The Classical Universes of the No-Boundary Quantum State
- The No-Boundary Measure of the Universe
- Towards Anisotropy-Free and Non-Singular Bounce Cosmology with Scale-invariant Perturbations
- Perturbations in bouncing cosmologies: dynamical attractor vs scale invariance
- Planck 2013 results support the cyclic universe
- Note on the production of scale-invariant entropy perturbation in the Ekpyrotic universe
- Ekpyrotic Perturbations With Small Non-Gaussian Corrections
- On the Quantum-To-Classical Transition for Ekpyrotic Perturbations
- On the No-Boundary Proposal for Ekpyrotic and Cyclic Cosmologies
- Eternal Inflation With Non-Inflationary Pocket Universes
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- Lorentzian Quantum Cosmology
- Review of the No-Boundary Wave Function
- No-boundary prescriptions in Lorentzian quantum cosmology
- A Safe Beginning for the Universe?
- Classical Inflationary and Ekpyrotic Universes in the No-Boundary Wavefunction
- Bouncing Universe from Nothing
- Cosmological consequences of a principle of finite amplitudes
- Converting entropy to curvature perturbations after a cosmic bounce
- The Wave Function of Simple Universes, Analytically Continued From Negative to Positive Potentials
- The Cosmological OTOC: Formulating new cosmological micro-canonical correlation functions for random chaotic fluctuations in Out-of-Equilibrium Quantum Statistical Field Theory
- Fuzzy Euclidean wormholes in de Sitter space
- Quantum Transitions Through Cosmological Singularities
- The Non-Minimal Ekpyrotic Trispectrum
- New Ekpyrotic Quantum Cosmology
- A small Universe
- Kerr-NUT-de Sitter as an Inhomogeneous Non-Singular Bouncing Cosmology
- No-boundary solutions are robust to quantum gravity corrections
- The Wavefunction of Anisotropic Inflationary Universes With No-Boundary Conditions
- Revisiting the no-boundary proposal with a scalar field
- Allowable Complex Scalars from Kaluza-Klein Compactifications and Metric Rescalings
- How to Create Universes with Internal Flux
- Dissipative Emergence of Inflation from Quasi-Cyclic Universe
- Instantons near a tachyonic top in anti de Sitter and the no-boundary regulator