Tachyons in throat cosmology

Halter, Sebastian; Harling, Benedict von; Hebecker, Arthur

doi:10.1007/jhep02(2010)063

Cited by 2 publications

(1 citation statement)

References 115 publications

(319 reference statements)

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“…These possibilities are studied in upcoming work [41].) This is a self-consistent assumption since the IR dynamics of a throat are known to be sufficiently (though not absolutely) sequestered from the dynamics of the rest of the compactification [42].…”

Section: False Vacuum Decaymentioning

confidence: 99%

The string soundscape at gravitational wave detectors

2018

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We argue that gravitational wave (GW) signals due to collisions of ultra-relativistic bubble walls may be common in string theory. This occurs due to a process of post-inflationary vacuum decay via quantum tunnelling within (Randall-Sundrum-like) warped throats. Though a specific example is studied in the context of type IIB string theory, we argue that our conclusions are likely more general. Many such transitions could have occurred in the post-inflationary Universe, as a large number of throats with exponentially different IR scales can be present in the string landscape, potentially leading to several signals of widely different frequencies -a soundscape connected to the landscape of vacua. Detectors such as eLISA and AEGIS, and observations with BBO, SKA and EPTA (pulsar timing) have the sensitivity to detect such signals, while at higher frequency aLIGO is not yet at the required sensitivity. A distribution of primordial black holes is also a likely consequence, though reliable estimates of masses and ΩpBHh 2 require dedicated numerical simulations, as do the fine details of the GW spectrum due to the unusual nature of both the bubble walls and transition.

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Section: False Vacuum Decaymentioning

confidence: 99%

The string soundscape at gravitational wave detectors

2018

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On $ \mathcal{I} $ -even singlet glueballs in the Klebanov-Strassler theory

Gordeli

Melnikov

2011

J. High Energ. Phys.

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In this note we study vector fluctuations over the Klebanov-Strassler type IIB supergravity solution that are even under the I conjugation. We are interested only in the states invariant under the global SU (2) × SU (2) symmetry. Apart from the glueball dual to the U (1)R current there is one more 1 ++ state, which is a member of a massive vector multiplet containing also a scalar 0 ++ . Combined with previous results, our analysis allows to complete the list of low energy singlet supermultiplets in the Klebanov-Strassler theory.

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Tachyons in throat cosmology

Cited by 2 publications

References 115 publications

The string soundscape at gravitational wave detectors

The string soundscape at gravitational wave detectors

On $ \mathcal{I} $ -even singlet glueballs in the Klebanov-Strassler theory

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