7 citations · 11 across the 19 of their papers we have counts for
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ULTRAMAN: A Proposed ultrasound detector for macroscopic dark matter
Oem Trivedi, Robert J. Scherrer, Alfredo Gurrola
We propose ULTRAMAN (ULTRAsound Macro ANalyzer), a passive ultrasound array experiment designed to search for macroscopic dark matter (macros) through coherent acoustic disturbance…
Dark Energy in the Plane
Oem Trivedi, Robert J. Scherrer, Alfredo Gurrola
We introduce a unified framework for dark energy diagnostics based on the joint phase space of the equation of state and the sound speed . The resulting plane…
Solar System Probes for Scalar Field Dark Matter
Edmund Ghampson, Oem Trivedi, Robert J. Scherrer +1
Scalar field dark matter provides us with a well motivated alternative to conventional particle dark matter, especially when ultralight fields form coherent oscillations or compact…
Apocalypse When? Solar System Constraints on an Imminent Big Rip
Robert J. Scherrer, Oem Trivedi
Phantom dark energy models with an equation of state parameter lead generically to a future big rip singularity, in which the dark energy density becomes infinite in a fin…
Smoking Gun Signatures of Quasilocal Probability in Black Hole Ringdowns
Oem Trivedi, Alfredo Gurrola, Robert J. Scherrer
Building on recent work introducing the idea of Quasilocal Probability in curved spacetime, we develop its observational implications for black hole ringdown in detail. We show tha…
Direct cosmographic reconstruction of the quintessence potential
Saikat Chakraborty, Peter K. S. Dunsby, Robert J. Scherrer
We derive expressions for the first and second derivatives of the quintessence potential , in terms of and , as fu…
Probing Dark Energy on the Moon
Alfredo Gurrola, Robert J. Scherrer, Oem Trivedi
The effective field theory (EFT) of cosmic acceleration provides a model-independent framework for describing dark energy and modified gravity, yet many of its defining operators r…
Non-Hermitian Quantum Mechanics with Applications to Gravity
Oem Trivedi, Alfredo Gurrola, Robert J. Scherrer
Hermiticity is usually treated as a foundational axiom of quantum mechanics, guaranteeing real spectra and unitary time evolution. In this work we argue that Hermiticity is more na…
Partial Relief of the Hubble Tension and a Natural Self-Interacting Dark Matter Candidate From Staged Symmetry Breaking
Zachary J. Hoelscher, Thomas W. Kephart, Robert J. Scherrer +1
The values of the Hubble constant () inferred from the cosmic microwave background (CMB) and local measurements via the distance ladder exhibit a tension. In thi…
Probing the Sound Speed of Dark Energy with a Lunar Laser Interferometer
Alfredo Gurrola, Robert J. Scherrer, Oem Trivedi
The sound speed of dark energy encodes fundamental information about the microphysics underlying cosmic acceleration, yet remains essentially unconstrained by existing observations…
Exact general solutions for cosmological scalar field evolution in a vacuum-energy dominated expansion
Patrick Hu, Robert J. Scherrer
We derive exact general solutions (as opposed to attractor particular solutions) for the evolution of a scalar field in a universe dominated by a background fluid with equation…