41 citations · 147 across the 8 of their papers we have counts for
10 papers
Toward the CompactHedron: Bounds on Neutron Stars from Microscopic Principles
Thomas Apostolidis, Alessandro Longo, Borna Salehian +1
We investigate the implications of causality and positivity for the tidal Love numbers of gravitating objects. We work within the framework of point-particle effective field theory…
Analyticity and positivity of Green's functions without Lorentz
Paolo Creminelli, Alessandro Longo, Borna Salehian +1
We study the properties imposed by microcausality and positivity on the retarded two-point Green's function in a theory with spontaneous breaking of Lorentz invariance. We assume i…
Positivity bounds on electromagnetic properties of media
Paolo Creminelli, Oliver Janssen, Borna Salehian +1
We study the constraints imposed on the electromagnetic response of general media by microcausality (commutators of local fields vanish outside the light cone) and positivity of th…
Dissipative Inflation via Scalar Production
Paolo Creminelli, Soubhik Kumar, Borna Salehian +1
We describe a new mechanism that gives rise to dissipation during cosmic inflation. In the simplest implementation, the mechanism requires the presence of a massive scalar field wi…
Beyond Schrödinger-Poisson: Nonrelativistic Effective Field Theory for Scalar Dark Matter
Borna Salehian, Hong-Yi Zhang, Mustafa A. Amin +2
Massive scalar fields provide excellent dark matter candidates, whose dynamics are often explored analytically and numerically using nonrelativistic Schrödinger-Poisson (SP) equati…
Dark photon dark matter from charged inflaton
Hassan Firouzjahi, Mohammad Ali Gorji, Shinji Mukohyama +1
We present a scenario of vector dark matter production during inflation containing a complex inflaton field which is charged under a dark gauge field and which has a symmetry break…
Vector dark matter production from inflation with symmetry breaking
Borna Salehian, Mohammad Ali Gorji, Hassan Firouzjahi +1
We present a scenario of vector dark matter production from symmetry breaking at the end of inflation. In this model, the accumulated energy density associated with the quantum flu…
Analytic study of dark photon and gravitational wave production from axion
Borna Salehian, Mohammad Ali Gorji, Shinji Mukohyama +1
Axion-like fields heavier than about eV are expected to oscillate in the radiation dominated epoch when the Hubble parameter drops below their mass. Considering the Chern…
Effective theories for a nonrelativistic field in an expanding universe: Induced self-interaction, pressure, sound speed, and viscosity
Borna Salehian, Mohammad Hossein Namjoo, David I. Kaiser
A massive, nonrelativistic scalar field in an expanding spacetime is usually approximated by a pressureless perfect fluid, which leads to the standard conclusion that such a field…
Vacuum decay and bubble nucleation in gravity
Borna Salehian, Hassan Firouzjahi
In this work we study vacuum decay and bubble nucleation in models of higher curvature gravity. Building upon the analysis of Coleman-De Luccia (CDL), we present the formali…