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Hilbert-Space Fragmentation from Strict Confinement
Zhi-Cheng Yang, Fangli Liu, Alexey V. Gorshkov +1
We study one-dimensional spin-1/2 models in which strict confinement of Ising domain walls leads to the fragmentation of Hilbert space into exponentially many disconnected subspace…
Quantum Many-Body Scar States with Emergent Kinetic Constraints and Finite-Entanglement Revivals
Thomas Iadecola, Michael Schecter
We construct a set of exact, highly excited eigenstates for a nonintegrable spin-1/2 model in one dimension that is relevant to experiments on Rydberg atoms in the antiblockade reg…
Braiding photonic topological zero modes
Jiho Noh, Thomas Schuster, Thomas Iadecola +5
A remarkable property of quantum mechanics in two-dimensional (2D) space is its ability to support "anyons," particles that are neither fermions nor bosons. Theory predicts that th…
Weak Ergodicity Breaking and Quantum Many-Body Scars in Spin-1 XY Magnets
Michael Schecter, Thomas Iadecola
We study the spin-1 XY model on a hypercubic lattice in dimensions and show that this well-known nonintegrable model hosts an extensive set of anomalous finite-energy-density e…
Quantum Many-Body Scars and Space-Time Crystalline Order from Magnon Condensation
Thomas Iadecola, Michael Schecter, Shenglong Xu
We study the eigenstate properties of a nonintegrable spin chain that was recently realized experimentally in a Rydberg-atom quantum simulator. In the experiment, long-lived cohere…