Heisenberg's uncertainty principle in the PTOLEMY project: A theory update

A Apponi, MG Betti, M Borghesi, A Boyarsky, N Canci… - Physical Review D, 2022 - APS
We discuss the consequences of the quantum uncertainty on the spectrum of the electron
emitted by the β-processes of a tritium atom bound to a graphene sheet. We analyze …

Limits on the cosmic neutrino background

M Bauer, JD Shergold - Journal of Cosmology and Astroparticle …, 2023 - iopscience.iop.org
We present the first comprehensive discussion of constraints on the cosmic neutrino
background (CνB) overdensity, including theoretical, experimental and cosmological limits …

A review of neutrino decoupling from the early universe to the current universe

K Akita, M Yamaguchi - Universe, 2022 - mdpi.com
We review the distortions of spectra of relic neutrinos due to the interactions with electrons,
positrons, and neutrinos in the early universe. We solve integro-differential kinetic equations …

Searches for massive neutrinos with mechanical quantum sensors

D Carney, KG Leach, DC Moore - PRX Quantum, 2023 - APS
The development of quantum optomechanics now allows mechanical sensors with
femtogram masses to be controlled and measured in the quantum regime. If the mechanical …

[HTML][HTML] Dielectric response and excitations of hydrogenated free-standing graphene

MG Betti, D Marchiani, A Tonelli, M Sbroscia, E Blundo… - Carbon Trends, 2023 - Elsevier
The conversion of semimetallic suspended graphene (Gr) to a large-gap semiconducting
phase is here realized by controlled adsorption of atomic hydrogen (deuterium) on free …

Towards free-standing graphane: atomic hydrogen and deuterium bonding to nano-porous graphene

MMS Abdelnabi, E Blundo, MG Betti, G Cavoto… - …, 2020 - iopscience.iop.org
Graphane is formed by bonding hydrogen (and deuterium) atoms to carbon atoms in the
graphene mesh, with modification from the pure planar sp 2 bonding towards an sp 3 …

Deuterium adsorption on free-standing graphene

MMS Abdelnabi, C Izzo, E Blundo, MG Betti… - Nanomaterials, 2021 - mdpi.com
A suitable way to modify the electronic properties of graphene—while maintaining the
exceptional properties associated with its two-dimensional (2D) nature—is its …

Sub-MeV dark matter detection with bilayer graphene

A Das, J Jang, H Min - Physical Review D, 2024 - APS
The light dark matter mass regime has emerged as the next frontier in the direct detection
experiment due to the lack of any detection signal in the higher mass range. In this paper …

Unstable cosmic neutrino capture

K Akita, G Lambiase, M Yamaguchi - Journal of High Energy Physics, 2022 - Springer
A bstract Future direct observations of the Cosmic Neutrino Background (CνB) have the
potential to explore a neutrino lifetime, especially in the region of the age of the universe, t …

Detection of low-energy electrons with transition-edge sensors

C Pepe, B Corcione, F Pandolfi, H Garrone… - Physical Review …, 2024 - APS
We present the detection of electrons with kinetic energy in the 100 eV range with transition-
edge sensors (TESs). This has been achieved with a (100× 100)-μ m 2 Ti/Au bilayer TES …