77 citations · 337 across the 10 of their papers we have counts for
10 papers
Non-Gaussianity in rapid-turn multi-field inflation
Oksana Iarygina, M. C. David Marsh, Gustavo Salinas
We show that theories of inflation with multiple, rapidly turning fields can generate large amounts of non-Gaussianity. We consider a general theory with two fields, an arbitrary f…
Transient Radio Lines from Axion Miniclusters and Axion Stars
Samuel J. Witte, Sebastian Baum, Matthew Lawson +3
Gravitationally bound clumps of dark matter axions in the form of 'miniclusters' or even denser 'axion stars' can generate strong radio signals through axion-photon conversion when…
Glueball Dark Matter revisited
Pierluca Carenza, Roman Pasechnik, Gustavo Salinas +1
We revisit the possibility that Dark Matter is composed of stable scalar glueballs of a confining dark gauge theory coupled only to gravity. The relic abundance of da…
Gravitational Waves from Dark Yang-Mills Sectors
James Halverson, Cody Long, Anindita Maiti +2
Dark Yang-Mills sectors, which are ubiquitous in the string landscape, may be reheated above their critical temperature and subsequently go through a confining first-order phase tr…
On String Theory Expectations for Photon Couplings to Axion-Like Particles
James Halverson, Cody Long, Brent Nelson +1
ALP-photon couplings are modeled in large ensembles of string vacua and random matrix theories. In all cases, the effective coupling increases polynomially in the number of ALPs, o…
On Axion Reheating in the String Landscape
James Halverson, Cody Long, Brent Nelson +1
We demonstrate that asymmetric reheating arises in a large ensemble of string compactifications with many axions and gauged dark sectors. This phenomenon may help avoid numerous co…