13 citations · 50 across the 8 of their papers we have counts for
8 papers
String Axiverse Enhancement of Superradiant Dark Matter Production
Diogo S. Gorgulho, Jacob A. Litterer, João G. Rosa
We study the effects of string axion emission on dark matter production by light primordial black holes (PBHs), through both evaporation and superradiance. We show, in particular,…
Dark neutron stars from a heavy dark sector
Jacob A. Litterer, João G. Rosa
We study the formation and properties of dark neutron stars in a scenario where dark matter is made up of (heavy) dark baryons in a sequestered copy of the MSSM. This scenario natu…
Causal Modifications of Gravity and Their Observational Bounds
Mark P. Hertzberg, Jacob A. Litterer, Neil Shah
Since general relativity is the unique theory of massless spin 2 particles at large distances, the most reasonable way to have significant modifications is to introduce one or more…
Bound on Quantum Fluctuations in Gravitational Waves from LIGO-Virgo
Mark P. Hertzberg, Jacob A. Litterer
We derive some of the central equations governing quantum fluctuations in gravitational waves, making use of general relativity as a sensible effective quantum theory at large dist…
Acausality in Superfluid Dark Matter and MOND-like Theories
Mark P. Hertzberg, Jacob A. Litterer, Neil Shah
There has been much interest in novel models of dark matter that exhibit interesting behavior on galactic scales. A primary motivation is the observed Baryonic Tully-Fisher Relatio…
Symmetries from Locality. III. Massless Spin 2 Gravitons and Time Translations
Mark P. Hertzberg, Jacob A. Litterer
We relax the assumption of time translation and Lorentz boost symmetry in theories involving massless spin 2 gravitons, while maintaining a basic notion of locality that there is n…