Hilbert space fragmentation in a long-range system

• URL: http://arxiv.org/abs/2302.11680v2
• Date: Wed, 19 Jul 2023 09:42:03 GMT
• Title: Hilbert space fragmentation in a long-range system
• Authors: Gianluca Francica, Luca Dell'Anna
• Abstract summary: We study the role of the interaction range on the Hilbert space fragmentation and many-body scar states. We show that both scar states and weak fragmentation of the Hilbert space survive for almost any range of the coupling.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We study the role of the interaction range on the Hilbert space fragmentation and many-body scar states considering a spin-1/2 many-body Hamiltonian describing a generalized Fredkin spin chain. We show that both scar states and weak fragmentation of the Hilbert space survive for almost any range of the coupling. Finally we investigate the effects of such structures of the Hilbert space on the out-of-equilibrium dynamics, triggered by certain initial states, characterized by either local persistent oscillations or non-uniform stationary profile of the magnetization.

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