54 citations · 166 across the 10 of their papers we have counts for
10 papers
On primordial equation of state transitions
Aditya Aravind, Dustin Lorshbough, Sonia Paban
We revisit the physics of transitions from a general equation of state parameter to the final stage of slow-roll inflation. We show that it is unlikely for the modes comprising the…
An upper bound on the reheat temperature for short duration inflation
Dustin Lorshbough
We calculate the upper bound on the reheating temperature given the non-observation of gravitational waves if the number of efolds during inflation are the minimum number required…
Vector field instability and the primordial tensor spectrum
Stefan Eccles, Willy Fischler, Dustin Lorshbough +1
It has recently been shown that the presence of a spectator pseudoscalar field, coupled to photons through a Chern-Simons term, can amplify the primordial tensor spectrum without o…
Decoupled Sectors and Wolf-Rayet Galaxies
Willy Fischler, Jimmy, Dustin Lorshbough
It has recently been proposed that gamma-ray burst (GRB) events may be modified by the presence of a dark matter sector subcomponent that is charged under an unbroken U(1). This pr…
Analyzing Multi-Field Tunneling With Exact Bounce Solutions
Aditya Aravind, Brandon S. DiNunno, Dustin Lorshbough +1
We study multi-field tunneling using exact solutions for additive potentials. We introduce a binomial potential with non-integer powers that could be considered a generalization of…
Supersymmetric Partially Interacting Dark Matter
Willy Fischler, Dustin Lorshbough, Walter Tangarife
We present a model of partially interacting dark matter (PIDM) within the framework of supersymmetry with gauge mediated symmetry breaking. Dark sector atoms are produced through A…
Implications Of A Dark Sector U(1) For Gamma Ray Bursts
Tom Banks, Willy Fischler, Dustin Lorshbough +1
We discuss the implications for gamma ray burst studies, of a dark unbroken sector that couples predominantly through gravity to the visible sector. The dominant dark matt…
Lower Bound for the Multi-Field Bounce Action
Aditya Aravind, Dustin Lorshbough, Sonia Paban
We present a lower bound for the multi-field bounce action with a quartic potential in the absence of gravity. We find that for a large number of fields the lower bound decreases w…
Non-Gaussianity from Excited Initial Inflationary States
Aditya Aravind, Dustin Lorshbough, Sonia Paban
We study squeezed limit generation by excited initial inflationary states in a model independent way. We restrict "excited" to mean a Bogoliubov transformation of the Bunc…
Rapid field excursions and the inflationary tensor spectrum
Daniel Carney, Willy Fischler, Ely D. Kovetz +2
We consider the effects of fields with suddenly changing mass on the inflationary power spectra. In this context, when a field becomes light, it will be excited. This process contr…