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String cosmology ba...
String cosmology backgrounds from classical string geometry
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- Bernardo, Heliudson (författare)
- McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
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- Brandenberger, Robert (författare)
- McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
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- Franzmann, Guilherme (författare)
- Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),Nordita SU;Stockholm Univ, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.
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McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada Nordiska institutet för teoretisk fysik (Nordita) (creator_code:org_t)
- American Physical Society (APS), 2021
- 2021
- Engelska.
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Ingår i: Physical Review D. - : American Physical Society (APS). - 2470-0010 .- 2470-0029. ; 103:4
- Relaterad länk:
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https://doi.org/10.1...
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visa fler...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We introduce a very early universe model based on the thermodynamics of a gas of closed strings in a background that is nonperturbative in alpha '. Upon considering the fully alpha '-corrected equations extended to include certain anisotropic cosmological backgrounds, we describe the evolution of the system in three different stages parametrized by the gas's equation of state. Using standard string thermodynamical arguments, we start with an isotropic ten-dimensional universe inside the string scale and evolve it toward a universe with four large spacetime dimensions and six stabilized internal dimensions in the Einstein frame.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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