3 papers
quant-ph2025
Ising on the donut: Regimes of topological quantum error correction from statistical mechanics
Lucas H. English, Sam Roberts, Stephen D. Bartlett +2
Utility-scale quantum computers require quantum error correcting codes with large numbers of physical qubits to achieve sufficiently low logical error rates. The performance of qua…
quant-ph2025
Explicit Instances of Quantum Tanner Codes
Rebecca Katharina Radebold, Stephen D. Bartlett, Andrew C. Doherty
We construct several explicit instances of quantum Tanner codes, a class of asymptotically good quantum low-density parity check (qLDPC) codes. The codes are constructed using dihe…
cond-mat.str-el2018
Phase diagram of the quantum Ising model with long-range interactions on an infinite-cylinder triangular lattice
S. N. Saadatmand, S. D. Bartlett, I. P. McCulloch
Obtaining quantitative ground-state behavior for geometrically-frustrated quantum magnets with long-range interactions is challenging for numerical methods. Here, we demonstrate th…