13 citations · 14 across the 7 of their papers we have counts for
8 papers
To Stack or Not to Stack? Jacobian Conditioning and the Benefits of Depth in Metasurface-Based Linear Transformation Synthesis
Andrea Abrardo, Andrea Garulli
This paper investigates when and why stacking programmable metasurfaces into Stacked Intelligent Metasurfaces (SIMs) improves linear transformation synthesis at a fixed phase-contr…
AI--Assisted Exploration: DHOST Theories without Quantum Ghosts
Ginevra Braga, Raul Jimenez, Sabino Matarrese
We ask whether a local symmetry can organize both classical degeneracy and perturbative stability in DHOST theories. An AI-assisted search finds a candidate in a constant-disformal…
THFM: A Unified Video Foundation Model for 4D Human Perception and Beyond
Letian Wang, Andrei Zanfir, Eduard Gabriel Bazavan +2
We present THFM, a unified video foundation model for human-centric perception that jointly addresses dense tasks (depth, normals, segmentation, dense pose) and sparse tasks (2d/3d…
Cluster glass behavior and magnetocaloric effect in the hexagonal polymorph of disordered CePdGe
Leszek S. Litzbarski, Kamil Balcarek, Anna Bajorek +3
In this work, we study the hexagonal variant of the system that crystallizes in the -type structure (space group , ) and exhib…
Inflation without an Inflaton III: non-Gaussian signatures
Mariam Abdelaziz, Marisol Traforetti, Daniele Bertacca +3
We investigate primordial non-Gaussianity in the Inflation without an Inflaton (IWI) framework, where scalar perturbations are generated at second order by primordial gravitational…
Inflation without an Inflaton II: observational predictions
Marisol Traforetti, Mariam Abdelaziz, Daniele Bertacca +3
We present a complete computation of the scalar power spectrum in the \emph{inflation without inflaton} (IWI) framework, where the inflationary expansion is driven solely by a de~S…
Inflation without an Inflaton
Daniele Bertacca, Raul Jimenez, Sabino Matarrese +1
We propose a novel scenario in which scalar perturbations, that seed the large scale structure of the Universe, are generated without relying on a scalar field (the inflaton). In t…
How Gaussian can the Sky be? Primordial Non-Gaussianity from Quantum Information
Cesar Gomez, Raul Jimenez
Using the quantum information picture to describe the early universe as a time dependent quantum density matrix, with time playing the role of a stochastic variable, we compute the…