Speaker
Dr
Arthur Hutsalyuk
(ELTE)
Description
Fragmentation of the Hilbert space is a specific fenomena that appears in systems with a presence of non-dynamical domain walls which lead to the exponential degeneration of energy levels. Such degeneration was observed in multiple systems. In particular such property was discovered in the folded-XXZ model ArXiv:2105.02252 (see also 2009.04995, 2011.01159). Further generalization of this model leads to new classes of integrable systems that also possess Hilbert space fragmentation. We discuss this progress based on arXiv:2108.13724 and yet unpublished results.
