8 citations · 12 across the 6 of their papers we have counts for
6 papers · 1 filter
Mean-field approach to Mid-spectrum Eigenstates of long-range interacting Quantum Systems
Bojan Žunkovič, Pedro Ribeiro
We study the equilibrium properties of the spin- XY chain with an infinite-range transverse interaction. At zero temperature, competition between the XY- and the -ordered p…
Mean-field dynamics of an infinite-range interacting quantum system: chaos, dynamical phase transition, and localisation
Bojan Žunkovič, Antonio Zegarra
We investigate the dynamical properties of the XY spin 1/2 chain with infinite-range transverse interactions and find a dynamical phase transition with a chaotic dynamical phase. I…
Grokking phase transitions in learning local rules with gradient descent
Bojan Žunkovič, Enej Ilievski
We discuss two solvable grokking (generalisation beyond overfitting) models in a rule learning scenario. We show that grokking is a phase transition and find exact analytic express…
Dynamical Phase Diagram of a Quantum Ising Chain with Long Range Interactions
Giulia Piccitto, Bojan Žunkovič, Alessandro Silva
We investigate the effect of short-range correlations on the dynamical phase diagram of quantum many-body systems with long-range interactions. Focusing on Ising spin chains with p…
Impact of non-equilibrium fluctuations on pre-thermal dynamical phase transitions in long-range interacting spin chains
Alessio Lerose, Bojan Zunkovic, Jamir Marino +2
We study the non-equilibrium phase diagram and the dynamical phase transitions occurring during the pre-thermalization of non-integrable quantum spin chains, subject to either quan…
Chaotic dynamical ferromagnetic phase induced by non-equilibrium quantum fluctuations
A. Lerose, J. Marino, B. Zunkovic +2
We investigate the robustness of a dynamical phase transition against quantum fluctuations by studying the impact of a ferromagnetic nearest-neighbour spin interaction in one spati…