Persistent non-Gaussian correlations in out-of-equilibrium Rydberg atom arrays

A Deger, A Daniel, Z Papić, JK Pachos - PRX Quantum, 2023 - APS
Gaussian correlations emerge in a large class of many-body quantum systems quenched
out of equilibrium, as demonstrated in recent experiments on coupled one-dimensional …

Emerging D massive graviton in graphene-like systems

P Salgado-Rebolledo, JK Pachos - New Journal of Physics, 2023 - iopscience.iop.org
Unlike the fundamental forces of the Standard Model the quantum effects of gravity are still
experimentally inaccessible. Rather surprisingly quantum aspects of gravity, such as …

Variational quantum algorithms and the complexity of many-body systems

G da Fonseca Matos - 2023 - etheses.whiterose.ac.uk
Recently, variational quantum algorithms have received much attention, having the potential
to be successfully run on near-term quantum computers. In this thesis, we study these …

Quantifying fermionic interactions from the violation of Wick's theorem

JK Pachos, C Vlachou - Quantum, 2022 - quantum-journal.org
In contrast to interacting systems, the ground state of free systems has a highly ordered
pattern of quantum correlations, as witnessed by Wick's decomposition. Here, we quantify …