activity
20072024
most citedAxion Cosmology

2k citations · 9.3k across the 79 of their papers we have counts for

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9 papers · 1 filter

hep-th2021★ 108 cited

Superradiance in String Theory

Viraf M. Mehta, Mehmet Demirtas, Cody Long +3

We perform an extensive analysis of the statistics of axion masses and interactions in compactifications of type IIB string theory, and we show that black hole superradiance exclud…

hep-th2020★ 6 cited

Superradiance Exclusions in the Landscape of Type IIB String Theory

Viraf M. Mehta, Mehmet Demirtas, Cody Long +3

We obtain constraints from black hole superradiance in an ensemble of compactifications of type IIB string theory. The constraints require knowing only the axion masses and self-in…

hep-th2012★ 33 cited

Supersymmetric Vacua in Random Supergravity

Thomas C. Bachlechner, David Marsh, Liam McAllister +1

We determine the spectrum of scalar masses in a supersymmetric vacuum of a general N=1 supergravity theory, with the Kahler potential and superpotential taken to be random function…

hep-th2012★ 18 cited

Superpotential de-sequestering in string models

Marcus Berg, Joseph P. Conlon, David Marsh +1

Non-perturbative superpotential cross-couplings between visible sector matter and Kähler moduli can lead to significant flavour-changing neutral currents in compactifications of ty…

hep-th2012★ 21 cited

Cosmology of Axions and Moduli: A Dynamical Systems Approach

David J. E. Marsh, Ewan R. M. Tarrant, Edmund J. Copeland +1

This paper is concerned with string cosmology and the dynamics of multiple scalar fields in potentials that can become negative, and their features as (Early) Dark Energy models. O…

hep-th2012★ 100 cited

The Wasteland of Random Supergravities

David Marsh, Liam McAllister, Timm Wrase

We show that in a general \cal{N} = 1 supergravity with N \gg 1 scalar fields, an exponentially small fraction of the de Sitter critical points are metastable vacua. Taking the sup…