359 citations · 907 across the 14 of their papers we have counts for
16 papers
Cosmic string gravitational wave backgrounds at LISA: II. Reconstruction of conventional signals over astrophysical foregrounds
Androniki Dimitriou, Daniel G. Figueroa, Peera Simakachorn +2
We study the reconstruction of conventional cosmic-string signals with LISA in the presence of all major known astrophysical foregrounds expected in the LISA band. These include st…
Reviving Motivated Inflationary Potentials with -inflation in the light of ACT
Milad Solbi, Daris Samart, Peera Simakachorn
Recent ACT data favor a higher scalar spectral index , placing models such as -attractor T-models and natural Inflation in tension with current observations. We propose a K…
Cosmic string gravitational wave backgrounds at LISA: I. Signal survey, template reconstruction, and model comparison
Androniki Dimitriou, Daniel G. Figueroa, Peera Simakachorn +1
We present a catalog of gravitational wave background (GWB) signal templates from cosmic-string networks, based on relevant models proposed in the literature. We classify templates…
The Science of the Einstein Telescope
Adrian Abac, Raul Abramo, Simone Albanesi +485
Einstein Telescope (ET) is the European project for a gravitational-wave (GW) observatory of third-generation. In this paper we present a comprehensive discussion of its science ob…
New Source for QCD Axion Dark Matter Production: Curvature Induced
Cem Eröncel, Yann Gouttenoire, Ryosuke Sato +2
We discuss a novel mechanism for generating dark matter from a fast-rolling scalar field, relevant for both inflation and rotating axion models, and apply it specifically to the (Q…
A universal bound on the duration of a kination era
Cem Eröncel, Yann Gouttenoire, Ryosuke Sato +2
We show that primordial adiabatic curvature fluctuations generate an instability of the scalar field sourcing a kination era. We demonstrate that the generated higher Fourier modes…
Ultrahigh frequency primordial gravitational waves beyond the kHz: The case of cosmic strings
Géraldine Servant, Peera Simakachorn
We investigate gravitational-wave backgrounds (GWBs) of primordial origin that would manifest only at ultra-high frequencies, from kilohertz to 100 gigahertz, and leave no signal a…
Constraining Postinflationary Axions with Pulsar Timing Arrays
Géraldine Servant, Peera Simakachorn
Models that produce Axion-Like-Particles (ALP) after cosmological inflation due to spontaneous symmetry breaking also produce cosmic string networks. Those axionic strings l…
Cosmological Background Interpretation of Pulsar Timing Array Data
Daniel G. Figueroa, Mauro Pieroni, Angelo Ricciardone +1
We discuss the interpretation of the detected signal by Pulsar Timing Array (PTA) observations as a gravitational wave background (GWB) of cosmological origin. We combine NANOGrav…
Primordial Black Hole Archaeology with Gravitational Waves from Cosmic Strings
Anish Ghoshal, Yann Gouttenoire, Lucien Heurtier +1
Light primordial black holes (PBHs) with masses smaller than g () evaporate before the onset of Big-Bang nucleosynthesis, rendering their detection rather…
Cosmology with the Laser Interferometer Space Antenna
Pierre Auclair, David Bacon, Tessa Baker +177
The Laser Interferometer Space Antenna (LISA) has two scientific objectives of cosmological focus: to probe the expansion rate of the universe, and to understand stochastic gravita…
Kination cosmology from scalar fields and gravitational-wave signatures
Yann Gouttenoire, Geraldine Servant, Peera Simakachorn
Kination denotes an era in the cosmological history corresponding to an equation of state such that the total energy density of the universe redshifts as the sixth inverse p…
Revealing the Primordial Irreducible Inflationary Gravitational-Wave Background with a Spinning Peccei-Quinn Axion
Yann Gouttenoire, Géraldine Servant, Peera Simakachorn
The primordial irreducible gravitational-wave background due to quantum vacuum tensor fluctuations produced during inflation spans a large range of frequencies with an almost scale…
BSM with Cosmic Strings: Heavy, up to EeV mass, Unstable Particles
Yann Gouttenoire, Géraldine Servant, Peera Simakachorn
Unstable heavy particles well above the TeV scale are unaccessible experimentally. So far, Big-Bang Nucleosynthesis (BBN) provides the strongest limits on their mass and lifetime,…
Beyond the Standard Models with Cosmic Strings
Yann Gouttenoire, Géraldine Servant, Peera Simakachorn
We examine which information on the early cosmological history can be extracted from the potential measurement by third-generation gravitational-wave observatories of a stochastic…
Statistical mechanics guides the motions of cm scale objects
S. Siriroj, P. Simakachorn, N. Khumtong +36
Calculations and mechanistic explanations for the probabilistic movement of objects at the highly relevant cm length scales has been lacking and overlooked due to the complexity of…