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Quantum butterfly effect in polarized Floquet systems
Xiao Chen, Rahul M. Nandkishore, Andrew Lucas
We explore quantum dynamics in Floquet many-body systems with local conservation laws in one spatial dimension, focusing on sectors of the Hilbert space which are highly polarized.…
Thermalization and its absence within Krylov subspaces of a constrained Hamiltonian
Sanjay Moudgalya, Abhinav Prem, Rahul Nandkishore +2
We study the quantum dynamics of a simple translation invariant, center-of-mass (CoM) preserving model of interacting fermions in one dimension (1D), which arises in multiple exper…
Localization from Hilbert space shattering: from theory to physical realizations
Vedika Khemani, Michael Hermele, Rahul M. Nandkishore
We show how a finite number of conservation laws can globally `shatter' Hilbert space into exponentially many dynamically disconnected subsectors, leading to an unexpected dynamics…
Anomalous localization at the boundary of an interacting topological insulator
Itamar Kimchi, Yang-Zhi Chou, Rahul M. Nandkishore +1
The boundary of a topological insulator (TI) hosts an anomaly restricting its possible phases: e.g. 3D strong and weak TIs maintain surface conductivity at any disorder if symmetry…
Anomalous Subdiffusion from Subsystem Symmetries
Jason Iaconis, Sagar Vijay, Rahul Nandkishore
We introduce quantum circuits in two and three spatial dimensions which are classically simulable, despite producing a high degree of operator entanglement. We provide a partial ch…
Quantum entropic self-localization with ultracold fermions
Mikhail Mamaev, Itamar Kimchi, Michael A. Perlin +2
We study a driven, spin-orbit coupled fermionic system in a lattice at the resonant regime where the drive frequency equals the Hubbard repulsion, for which non-trivial constrained…