Simulating Lindbladian evolution with non-abelian symmetries: Ballistic front propagation in the $SU(2)$ Hubbard model with a localized loss

Abstract

We develop a non-Abelian time evolving block decimation (NA-TEBD) approach to study of open systems governed by Lindbladian time evolution, while exploiting an arbitrary number of abelian or non-abelian symmetries. We illustrate this method in a one-dimensional fermionic $SU(2)$ Hubbard model on a semi-infinite lattice with localized particle loss at one end. We observe a ballistic front propagation with strongly renormalized front velocity, and a hydrodynamic current density profile. For large loss rates, a suppression of the particle current is observed, as a result of the quantum Zeno effect. Operator entanglement is found to propagate faster than the depletion profile, preceding the latter.

11 pages, 8 figures

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Cited by in corpus (5)

• Non-Hermitian skin effect in one-dimensional interacting Bose gas
• Kardar-Parisi-Zhang scaling in the Hubbard model
• Zeno crossovers in the entanglement speed of spin chains with noisy impurities
• Non-equilibrium boundary driven quantum systems: models, methods and properties
• Loss-induced quantum information jet in an infinite temperature Hubbard chain