Seminarium Fizyki Materii Skondensowanej

In this talk I will discuss the various atypical dynamical properties found in the PXP model. I will first discuss the infinite temperature transport properties, focusing on both the long and short time regimes. In the long time regime, when resolving the effects of Hilbert space fragmentation in the model, one can observe superdiffusive transport in an otherwise chaotic model. Perturbing the model with a chemical potential only improves the quality of the numerical results. I will then focus on the short time regime and introduce our recent results on quantum many-body scars (QMBSs). Apart from the now standard Z2 scars I will present a construction that allows us to identify a new set of reviving states by introducing a minimal amount of entanglement to the initial state. Finally, if time permits, I will discuss the topic of excitations on top of a QMBS background.