Eigenstates in interacting integrable models match random superpositions of polynomially many Gaussian states for entanglement and non-Gaussianity, while nonintegrable models match exponentially many.
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Superconducting qubit experiments reveal a non-ergodic glassy regime in a 2D disordered spin model, with power-law Hilbert-space dynamics, frozen degrees of freedom, and vanishing spin diffusion above a disorder threshold.
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One-Body Purity, Non-Gaussianity, and Entanglement in Interacting Integrable Models
Eigenstates in interacting integrable models match random superpositions of polynomially many Gaussian states for entanglement and non-Gaussianity, while nonintegrable models match exponentially many.
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Hilbert space signatures of non-ergodic glassy dynamics
Superconducting qubit experiments reveal a non-ergodic glassy regime in a 2D disordered spin model, with power-law Hilbert-space dynamics, frozen degrees of freedom, and vanishing spin diffusion above a disorder threshold.