85 citations · 106 across the 6 of their papers we have counts for
3 papers · 1 filter
A differentiable quantum phase estimation algorithm
Davide Castaldo, Soran Jahangiri, Agostino Migliore +2
The simulation of electronic properties is a pivotal issue in modern electronic structure theory, driving significant efforts over the past decades to develop protocols for computi…
Hermitian and unitary almost-companion matrices of polynomials on demand
L. A. Markovich, A. Migliore, A. Messina
We introduce the concept of Almost-Companion Matrix (ACM) by relaxing the non-derogatory property of the standard Companion Matrix (CM). That is, we define an ACM as a matrix whose…
New approach to describe two coupled spins in a variable magnetic field
Yuri Belousov, Roberto Grimaudo, Antonino Messina +2
We propose a method to describe the evolution of two spins coupled by hyperfine interaction in an external time-dependent magnetic field. We apply the approach to the case of hyper…