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The Pre-Big Bang Scenario in String Cosmology
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We review physical motivations, phenomenological consequences, and open problems of the so-called pre-big bang scenario in superstring cosmology.
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Cited by 12 Pith papers
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$\alpha'$-Bootstrap
An infinite-dimensional algebraic structure on a megaspace yields recursive, T-duality-covariant NS-NS α' and α'^{2} corrections matching known bosonic and heterotic results up to field redefinitions.
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Scalar Hair at the String-Black-Hole Correspondence
All static spherical axion-dilaton solutions are SL(2,R) images of the FJNW seed, and scalar hair increases the alpha-prime curvature diagnostic at the string-black-hole correspondence surface, selecting the hairless ...
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Collective excitations in quantum gravity condensates
Collective excitations analogous to phonons are derived in quantum gravity condensates within a group field theory model, yielding leading beyond-mean-field corrections to emergent Friedmann dynamics.
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Curvature-Assisted Dynamical Compactification in a Pre-Inflationary Higher-Dimensional Universe
Negative curvature sustains tracker-like radion evolution in a 5D open FRW universe, enabling trapping into a compactified vacuum via Casimir and Kaluza-Klein thermal effects before 4D inflation dilutes curvature remnants.
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Viscosity in Isotropic Cosmological Backgrounds in General Relativity and Starobinsky Gravity
Shear viscosity does not affect the background expansion or the electromagnetic luminosity distance in isotropic cosmologies with a comoving fluid, also in Starobinsky gravity.
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Dark Matter Ultraviolet Freeze-in in General Reheating Scenarios
The paper derives analytic dark matter freeze-in yields for arbitrary power-law reheating histories and maps the gravitational production parameter space.
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Non-singular string cosmology via $\alpha^{\prime}$ corrections
The paper builds non-singular bouncing FLRW solutions in the O(d,d) invariant string cosmology action, but the higher-order coefficients are free inputs and the action consistency is unverified.
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LISA as a probe of pre-big-bang physics: a nested sampling analysis
Nested sampling analysis indicates LISA could constrain H1, m, sigma_i and beta in the pre-big-bang model to relative uncertainties of about 18 percent under favorable conditions when including foregrounds.
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Gravitational Bounce from the Quantum Exclusion Principle
A closed collapsing fluid ball with a hypothetical maximum density bounces into exponential expansion, which the authors equate with inflation and dark energy, predicting a small negative curvature.
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Forecast Constraints on Bouncing Cosmology from High Frequency Gravitational Waves Using Superconducting LC Circuits and Resonant Cavities
The paper forecasts that resonant-cavity and superconducting-circuit gravitational wave detectors could constrain the bounce energy scale of a generic bouncing cosmology far more tightly than astrophysical observatori...
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Cosmological constraints on small-scale primordial non-Gaussianity
Current pulsar-timing, CMB, BAO and PBH data constrain the small-scale local f_NL to -10.0 < f_NL < 1.2 for a monochromatic primordial power spectrum, with that constraint conditional on the spectral amplitude A_zeta = 10^-2.
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Science Case for the Einstein Telescope
The Einstein Telescope will enable gravitational-wave observations up to cosmological distances, opening avenues for discoveries in astrophysics, cosmology, and fundamental physics.
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