87 citations · 426 across the 10 of their papers we have counts for
5 papers · 1 filter
Quantum Error Correction in Nearly Critical Toric Codes
Zack Weinstein, Samuel J. Garratt
We investigate quantum error correction protocols for topological codes deformed away from their stabilizer limits, particularly as they are pushed towards quantum phase transition…
Operator dynamics in Floquet many-body systems
Takato Yoshimura, Samuel J. Garratt, J. T. Chalker
We study operator dynamics in many-body quantum systems, focusing on generic features of systems that are ergodic, spatially extended, and lack conserved densities. Quantum circuit…
Nonlocality and entanglement in measured critical quantum Ising chains
Zack Weinstein, Rohith Sajith, Ehud Altman +1
We study the effects of measurements, performed with a finite density in space, on the ground state of the one-dimensional transverse-field Ising model at criticality. Local degree…
Measurements conspire nonlocally to restructure critical quantum states
Samuel J. Garratt, Zack Weinstein, Ehud Altman
We study theoretically how local measurements perfomed on critical quantum ground states affect long-distance correlations. These states are highly entangled and feature algebraic…
Local pairing of Feynman histories in many-body Floquet models
S. J. Garratt, J. T. Chalker
We study many-body quantum dynamics using Floquet quantum circuits in one space dimension as simple examples of systems with local interactions that support ergodic phases. Physica…