30 citations · 203 across the 63 of their papers we have counts for
34 papers · 1 filter
Relic Neutrinos Probing Small Scale Primordial Non-Gaussianity
Suraj Gavhale, Shin'ichi Nojiri, Sergei D. Odintsov +1
Relic neutrinos retain a record of electromagnetic entropy production after neutrino decoupling, probing primordial modes erased from the primary CMB. We derive the cubic photon nu…
Dark Matter Deficient Galaxies as Probes of Dark Matter
Oem Trivedi, Abraham Loeb
Dark matter deficient galaxies provide a direct way to test whether baryons and dark matter can become sufficiently separated during galaxy evolution. We formulate a Dark Matter-Ba…
Non-Markovian Memory-Induced Effects in Quantum Cosmology
Aarav Shah, Paulo Moniz, Oem Trivedi +1
We study memory effects in quantum cosmology by extending the semiclassical Wheeler-DeWitt framework beyond its usual local form. The main idea is to introduce a causal memory kern…
Unique Gravitational-Wave Signals from Negative-Mass Binaries
Oem Trivedi, Abraham Loeb
Negative masses have long been explored, but their observational viability remains unclear. In this work, we develop a unified, observationally testable framework to constrain nega…
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…
Does Gravity Render Probability Quasilocal?
Oem Trivedi
We propose that probability in quantum theory, like energy in general relativity, acquires a fundamentally quasilocal character in curved spacetime. Interpreting Hermiticity as the…
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…
Future Rip Scenarios in Fractional Holographic Dark Energy
Ayush Bidlan, Paulo Moniz, Oem Trivedi
In this paper, we investigate the occurrence of late-time cosmological singularities, namely, the rip scenarios within the framework of interacting Fractional Holographic Dark Ener…
Inflation and Primordial Perturbations in Fractal Cosmology
Aarav Shah, Paulo Moniz, Maxim Khlopov +2
We study inflationary dynamics within the framework of fractal cosmology, where space is characterized by an effective non-integer dimension . In our work, fractal effects are s…
Thermodynamics vs Teleodynamics: A Cosmological Divide?
Oem Trivedi, Venkat Venkatasubramanian
We show that stationary black holes and the evolving universe belong to fundamentally different thermodynamic regimes: black holes obey ordinary Bekenstein Hawking thermodynamics,…
Novel Solar System Probes for Primordial Black Holes
Oem Trivedi, Abraham Loeb
Primordial Black Holes (PBHs) represent one of the more interesting ways to address dark matter, at the interface of both cosmology and quantum gravity. It is no surprise then that…
Cosmological Implications of Thermodynamic Split Conjecture
Oem Trivedi
Building on initial work on the Thermodynamic Split Conjecture (TSC), which posits that black hole and cosmological horizon thermodynamics are generically inequivalent, we examine…
Could Planck Star Remnants be Dark Matter?
Oem Trivedi, Abraham Loeb
We explore the end state of gravitational collapse under quantum gravity effects and propose that Planck Star Remnants (PSR), formed via nonsingular bounces, could serve as viable…
The old problem of the cosmological constant solved?
Jan Novák, Oem Trivedi
We formulate an approach to quantum gravity, called the ring paradigm. Gravity is mediated superluminally, and the graviton is described as a phonon on the grid of matter in the Un…
Reconstructing FHDE with Scalar and Gauge Fields
Ayush Bidlan, Paulo Moniz, Oem Trivedi
We revisit the Fractional Holographic Dark Energy (FHDE) model to reconstruct it by means of dynamic candidates such as () Quintessence, () K-essence, () Dilaton, (…
On the Cosmological Constant-Graviton Mass correspondence
Oem Trivedi, Abraham Loeb
Relations between the graviton mass and the cosmological constant have led to some interesting implications. We show that in any approach which leads to a direct correlation be…
Rips and regular future scenario with Holographic Dark Energy: A comprehensive look
I. Brevik, Maxim Khlopov, S. D. Odintsov +2
Interest on the possible future scenarios the universe could have has grew substantially with breakthroughs on late-time acceleration. Holographic dark energy (HDE) presents a very…
A long freeze is hard to achieve in the presence of matter
Samuel Blitz, Robert J. Scherrer, Oem Trivedi
Certain holographic dark energy (HDE) models allow for the possibility of a ``long freeze,'' in which the scale factor evolves to a constant in the long-time limit. Here we extend…
Kantowski-Sachs cosmological model with axion-like scalar field and dark energy
Maxim Krasnov, Oem Trivedi, Maxim Khlopov
We consider Axion-like particle (ALP) model to construct numerical spatially homogeneous anisotropic Kantowski-Sachs cosmological model. We present various analytical and numerical…
Fractional Holographic Dark Energy
Oem Trivedi, Ayush Bidlan, Paulo Moniz
Holographic dark energy theories present a fascinating interface to probe late-time cosmology, as guided by contemporary ideas about quantum gravity. In this work, we present a new…
Landauer's principle and information at the cosmological horizon
Oem Trivedi
We show that the information loss at the cosmological apparent horizon in an expanding universe does not obey Landauer's principle for efficient information erasure. This is in con…
Holographic dark energy with Granda-Oliveros cutoff and ansatz based approach: An extended look
Oem Trivedi, Maxim Khlopov
Holographic dark energy models have proven to be a very interesting way to study various aspects of late-time acceleration of the universe. In this work we extensively study HDE mo…
Tsallis holographic dark energy with power law ansatz approach
Oem Trivedi, Maxim Khlopov, Alexander V. Timoshkin
Holographic principles have proven to be a very interesting approach towards dealing with the issues of the late-time acceleration of the universe, which has resulted in a great am…
On rips and cosmological singularities in a universe merging with baby universes
Oem Trivedi, Maxim Khlopov
Understanding the late-time acceleration of the universe and its subtleties is one of the biggest mysteries in cosmology. A lot of different approaches have been put forward to dea…