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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8645
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dc.contributor.authorSrivastava, Apoorv-
dc.contributor.authorDutta, Shovan-
dc.date.accessioned2026-02-11T09:32:41Z-
dc.date.available2026-02-11T09:32:41Z-
dc.date.issued2025-03-27-
dc.identifier.citationSciPost Physics , 2025, Vol. 18(3), AR No. 111en_US
dc.identifier.issn2542-4653.-
dc.identifier.urihttp://hdl.handle.net/2289/8645-
dc.descriptionOpen Access. Also available at arXiv.org (one of the alternative locations)en_US
dc.description.abstractKinetically constrained spin chains serve as a prototype for structured ergodicity breaking in isolated quantum systems. We show that such a system exhibits a hierarchy of degenerate steady states when driven by incoherent pump and loss at the boundary. By tuning the relative pump and loss and how local the constraints are, one can stabilize mixed steady states, noiseless subsystems, and various decoherence-free subspaces, all of which preserve large amounts of information. We also find that a dipole-conserving bulk suppresses current in steady state. These exact results based on the flow in Hilbert space hold regardless of the specific Hamiltonian or drive mechanism. Our findings show that a competition of kinetic constraints and local drives can induce different forms of ergodicity breaking in open systems, which should be accessible in quantum simulators.en_US
dc.language.isoenen_US
dc.publisherSciPost Physicsen_US
dc.relation.urihttps://doi.org/10.48550/arXiv.2411.03309en_US
dc.relation.urihttp://doi.org/10.21468/SciPostPhys.18.3.111en_US
dc.rights2025 A. Srivastava and S. Dutta.en_US
dc.subjectCellular Automataen_US
dc.subjectConserved Chargesen_US
dc.subjectErgodicityen_US
dc.subjectQuantum spin Chainsen_US
dc.titleHierarchy of degenerate stationary states in a boundary-driven dipole-conserving spin chainen_US
dc.typeArticleen_US
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