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Instanton Cosmology and Domain Walls from M-theory and String Theory

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arxiv hep-th/9807051 v2 pith:FNCYLTZ5 submitted 1998-07-08 hep-th gr-qc

M. Bremer , M.J. Duff , H. Lu , C.N. Pope , K.S. Stelle This is my paper
classification hep-thgr-qc
keywords lagrangiansm-theorysolutionsstringtheoryadmitantisymmetricapproach
verification ladder T0 review T1 audit T2 compute T3 formal
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The recent proposal by Hawking and Turok for obtaining an open inflationary universe from singular instantons makes use of low-energy effective Lagrangians describing gravity coupled to scalars and non-propagating antisymmetric tensors. In this paper we derive some exact results for Lagrangians of this type, obtained from spherical compactifications of M-theory and string theory. In the case of the S^7 compactification of M-theory, we give a detailed discussion of the cosmological solutions. We also show that the lower-dimensional Lagrangians admit domain-wall solutions, which preserve one half of the supersymmetry, and which approach AdS spacetimes near their horizons.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. New BPS States from Bosonic/Heterotic Duality

    hep-th 2025-05 conditional novelty 6.0 of 10

    New heterotic BPS cosmic string and instanton solutions are constructed from a conjectured duality with the noncritical bosonic string, with explicit Killing spinors on both sides.

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  3. Holographic entanglement entropy and complexity for the cosmological braneworld model

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    Time-dependent holographic entanglement entropy and complexity are computed perturbatively for braneworld FLRW universes with radiation, matter, and exotic matter by using time-dependent brane positions in black brane...

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