Anomalous hydrodynamics in a class of scarred frustration-free Hamiltonians

J Richter, A Pal - Physical Review Research, 2022 - APS
Atypical eigenstates in the form of quantum scars and fragmentation of Hilbert space due to
conservation laws provide obstructions to thermalization in the absence of disorder. In …

Topological quantum critical points in the extended Bose-Hubbard model

J Fraxanet, D González-Cuadra, T Pfau… - Physical Review Letters, 2022 - APS
The combination of topology and quantum criticality can give rise to an exotic mix of
counterintuitive effects. Here, we show that unexpected topological properties take place in …

Efficiently solving the dynamics of many-body localized systems at strong disorder

G De Tomasi, F Pollmann, M Heyl - Physical Review B, 2019 - APS
We introduce a method to efficiently study the dynamical properties of many-body localized
systems in the regime of strong disorder and weak interactions. Our method reproduces …

Interacting second-order topological insulators in one-dimensional fermions with correlated hopping

A Montorsi, U Bhattacharya, D González-Cuadra… - Physical Review B, 2022 - APS
Higher-order topological crystalline phases in low-dimensional interacting quantum systems
represent a challenging and largely unexplored research topic. Here, we derive a …

Entropy, gap and a multi-parameter deformation of the Fredkin spin chain

Z Zhang, I Klich - Journal of Physics A: Mathematical and …, 2017 - iopscience.iop.org
We introduce a multi-parameter deformation of the Fredkin spin $1/2$ chain whose ground
state is a weighted superposition of Dyck paths, depending on a set of parameters ti along …

Finite-size gap, magnetization, and entanglement of deformed Fredkin spin chain

T Udagawa, H Katsura - Journal of Physics A: Mathematical and …, 2017 - iopscience.iop.org
We investigate ground-and excited-state properties of the deformed Fredkin spin chain
proposed by Salberger, Zhang, Klich, Korepin, and the authors. This model is a one …

The pair-flip model: a very entangled translationally invariant spin chain

L Caha, D Nagaj - arXiv preprint arXiv:1805.07168, 2018 - arxiv.org
Investigating translationally invariant qudit spin chains with a low local dimension, we ask
what is the best possible tradeoff between the scaling of the entanglement entropy of a large …

Deconfined quantum critical points in fermionic systems with spin-charge separation

N Baldelli, A Montorsi, S Julià-Farré… - arXiv preprint arXiv …, 2024 - arxiv.org
Deconfined quantum critical points are exotic transition points not predicted by the Landau-
Ginzburg-Wilson symmetry-breaking paradigm. They are associated to a one-point gap …

Interaction-Induced Fractionalization and Topological Superconductivity in the Polar Molecules Anisotropic Model

S Fazzini, L Barbiero, A Montorsi - Physical review letters, 2019 - APS
We show that the interplay between antiferromagnetic interaction and hole motion gives rise
to a topological superconducting phase. This is captured by the one dimensional anisotropic …

Deformed Fredkin model for the Moore-Read state on thin cylinders

C Voinea, S Pu, A Kirmani, P Ghaemi, A Rahmani… - Physical Review …, 2024 - APS
We propose a frustration-free model for the Moore-Read quantum Hall state on sufficiently
thin cylinders with circumferences≲ 7 magnetic lengths. While the Moore-Read Hamiltonian …