Scarred ferromagnetic phase in the long-range transverse-field Ising model

Fuente: arXiv
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Main Authors: Corps, Ángel L., Relaño, Armando
Format: Preprint
Published: 2025
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author Corps, Ángel L.
Relaño, Armando
author_facet Corps, Ángel L.
Relaño, Armando
contents We report the existence of a large set of ferromagnetic scarred states in the one-dimensional transverse-field Ising model with long-range interactions, in a regime with no ferromagnetic phase at finite temperature. These scarred states are distributed over different spectral regions, surrounded by paramagnetic states. We show that simple initial conditions, consisting in a few small magnetic domains, selectively populate these scarred states. This leads to the appearance of a special dynamical phase, which we call scarred ferromagnetic phase. As a consequence, initial states with a small number of small magnetic domains evolve towards ferromagnetic equilibrium states, whereas initial states with larger domains or no magnetic structure relax to the expected thermal paramagnetic equilibrium state.
format Preprint
id arxiv_https___arxiv_org_abs_2507_16421
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Scarred ferromagnetic phase in the long-range transverse-field Ising model
Corps, Ángel L.
Relaño, Armando
Statistical Mechanics
Quantum Physics
We report the existence of a large set of ferromagnetic scarred states in the one-dimensional transverse-field Ising model with long-range interactions, in a regime with no ferromagnetic phase at finite temperature. These scarred states are distributed over different spectral regions, surrounded by paramagnetic states. We show that simple initial conditions, consisting in a few small magnetic domains, selectively populate these scarred states. This leads to the appearance of a special dynamical phase, which we call scarred ferromagnetic phase. As a consequence, initial states with a small number of small magnetic domains evolve towards ferromagnetic equilibrium states, whereas initial states with larger domains or no magnetic structure relax to the expected thermal paramagnetic equilibrium state.
title Scarred ferromagnetic phase in the long-range transverse-field Ising model
topic Statistical Mechanics
Quantum Physics
url https://arxiv.org/abs/2507.16421