Meson Mass Sets Onset Time of Anomalous Dynamical Quantum Phase Transitions

Autor:	Osborne, Jesse J., Knaute, Johannes, McCulloch, Ian P., Halimeh, Jad C.
Rok vydání:	2024
Předmět:	Condensed Matter - Quantum Gases Condensed Matter - Statistical Mechanics Condensed Matter - Strongly Correlated Electrons High Energy Physics - Lattice Quantum Physics
Druh dokumentu:	Working Paper
Popis:	Dynamical quantum phase transitions (DQPTs) have been established as a rigorous framework for investigating far-from-equilibrium quantum many-body criticality. Although initially thought to be trivially connected to an order parameter flipping sign, a certain kind of \textit{anomalous} DQPTs have been discovered that exhibit no direct connection to the order parameter and have been shown to arise in the presence of confinement. Here, we show in two paradigmatic models how the onset time of anomalous DQPTs is directly connected, through a power law, to the meson mass in the confined regime of a global symmetry-broken phase. This relation becomes more prominent the closer the initial parameters are to the equilibrium quantum critical point, where a relativistic quantum field theory emerges. Our findings draw a direct connection between mesons and anomalous DQPTs, highlighting the power of the latter to classify exotic far-from-equilibrium criticality. Comment: $7+2$ pages, $4+4$ figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2407.03394 Zobrazit plný text záznamu View this record from Arxiv