Ergodicity-breaking eigenstates in quantum spin glasses

The two high-temperature eigenstate phases that have been most well-studied are the eigenstate-thermalized (ETH) and many-body localized (MBL) phases. In this talk, I discuss how eigenstates of the quantum p-spin models, which are the canonical models of mean-field spin-glass theory, do not fit into either category. In particular, I describe how the structure and organization of these eigenstates resembles the thermodynamics of classical spin glasses.