Related papers: Scattering and induced false vacuum decay in the two-dimensional quantum Ising model

Scattering and induced false vacuum decay in the two-dimensional quantum Ising model

URL: http://arxiv.org/abs/2509.02702v3
Date: Fri, 24 Oct 2025 07:44:36 GMT
Title: Scattering and induced false vacuum decay in the two-dimensional quantum Ising model
Authors: Luka Pavešić, Marco Di Liberto, Simone Montangero,
Abstract summary: We study scattering in the quantum Ising model in two dimensions.<n>We prepare wave packets on a $24 times 24$ lattice and evolve the state with tensor networks.<n>We find that a highly-energetic scattering process can induce a violent decay of the false vacuum, and investigate the spread of the resulting true vacuum bubble.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: We study scattering in the quantum Ising model in two dimensions. In the ordered phase, the spectrum contains a ladder of bound states and intertwined scattering resonances, which enable various scattering channels. By preparing wave packets on a $24 \times 24$ lattice and evolving the state with tensor networks, we explore and characterize these regimes, ranging from elastic scattering in the perturbative regime, to non-perturbative processes closer to the critical point. Then, we break the spin inversion symmetry and study the stability of the metastable false vacuum state on the collision of its excitations. We find that a highly-energetic scattering process can induce a violent decay of the false vacuum, and investigate the spread of the resulting true vacuum bubble.

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