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Roughening dynamics of interfaces in the two-dimensional quantum Ising model

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arxiv 2412.10145 v2 pith:KN2DHEHT submitted 2024-12-13 quant-ph cond-mat.stat-mech

Wladislaw Krinitsin , Niklas Tausendpfund , Matteo Rizzi , Markus Heyl , Markus Schmitt This is my paper · ORCID
classification quant-phcond-mat.stat-mech
keywords interfacesquantumrougheningdomaindynamicsinterfaceisingmodel
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The properties of interfaces are key to understand the physics of matter. However, the study of quantum interface dynamics has remained an outstanding challenge. Here, we use large-scale Tree Tensor Network simulations to identify the dynamical signature of an interface roughening transition within the ferromagnetic phase of the 2D quantum Ising model. For initial domain wall profiles we find extended prethermal plateaus for smooth interfaces, whereas above the roughening transition the domain wall decays quickly. Our results can be readily explored experimentally in Rydberg atomic systems.

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Cited by 2 Pith papers

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  1. Many-body delocalization with a two-dimensional 70-qubit superconducting quantum simulator

    quant-ph 2025-07 conditional novelty 6.0 of 10

    The imbalance decay exponent in a 2D disordered XY model grows with system size, evidence that finite-size 2D many-body localization is unstable, consistent with avalanche delocalization.

  2. Roughening and dynamics of an electric flux string in a (2+1)D lattice gauge theory

    hep-lat 2025-05 conditional novelty 5.0 of 10

    Numerical MPS simulations confirm static roughening signatures in a 2+1D Z2 gauge theory and show that after a local quench the entanglement entropy grows linearly in the roughening region, consistent with a massless ...

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