85 citations · 332 across the 12 of their papers we have counts for
5 papers · 1 filter
Intrinsic Error Thresholds in Nearly Critical Toric Codes
Zack Weinstein, Samuel J. Garratt
We study the protection of information in nearly critical topological quantum codes, constructed by perturbing topological stabilizer codes towards continuous quantum phase transit…
Computational Phase Transitions in Two-Dimensional Antiferromagnetic Melting
Zack Weinstein, Jalal Abu Ahmad, Daniel Podolsky +1
A computational phase transition in a classical or quantum system is a non-analytic change in behavior of an order parameter which can only be observed with the assistance of a non…
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…
Absence of Finite Temperature Phase Transitions in the X-Cube Model and its Generalization
Zack Weinstein, Emilio Cobanera, Gerardo Ortiz +1
We investigate thermal properties of the X-Cube model and its `clock-type' (X-Cube) extension. In the latter, the elementary spin-1/2 operators of the X-Cube mo…