activity
20242026
collaborators

7 papers

astro-ph.CO2026

Parameterizations of the Hubble Constant from the Binned Type Ia Supernova Master Sample: Logarithmic versus Power-law Forms

Maria Giovanna Dainotti, Avik Banerjee, Andre' LeClair +1

Motivated by the Hubble tension and the increasing debate about the redshift-dependency in the inferred Hubble constant, we investigate its dependence within the flat CDM framew…

hep-th2025

Quantum Vacuum energy as the origin of Gravity

André LeClair

We explore the idea that quantum vacuum energy is at the origin of Gravity. We formulate a gravitational version of the electromagnetic Casimir effect, and provide a…

hep-th2025

Non-perturbative renormalization group for pseudo-hermitian scalar fields in 4D

André LeClair

We define a model of 2 coupled SU(2) doublets of scalar fields in spacetime dimensions which have a rich structure of renormalization group (RG) flows to 1-loop when the SU(2)…

hep-th2024

A rich structure of renormalization group flows for Higgs-like models in 4 dimensions

André LeClair

We consider coupled Higgs doublets which transform in the usual way under SU(2). By constructing marginal operators which satisfy an operator product expansion based on the SU(…

hep-th2024

Vacuum energy density from the form factor bootstrap

André LeClair

The form-factor bootstrap is incomplete until one normalizes the zero-particle form factor. For the stress energy tensor we describe how to obtain the vacuum energy density $ρ_{\rm…

math-ph2024

Spectral Flow for the Riemann zeros

André LeClair

Recently, with Mussardo we defined a quantum mechanical problem of a single particle scattering with impurities wherein the quantized energy levels are exactly equal to t…

hep-th2024

Thermodynamic formulation of vacuum energy density in flat spacetime and potential implications for the cosmological constant

André LeClair

We propose a thermodynamical definition of the vacuum energy density , defined as , in quantum field theory in f…