297 citations · 1.4k across the 44 of their papers we have counts for
5 papers · 1 filter
Decoding quantum error correction with Ising model hardware
Joschka Roffe, Stefan Zohren, Dominic Horsman +1
Fault tolerant quantum computers will require efficient co-processors for real-time decoding of their adopted quantum error correction protocols. In this work we examine the possib…
Domain wall encoding of discrete variables for quantum annealing and QAOA
Nicholas Chancellor
In this paper I propose a new method of encoding discrete variables into Ising model qubits for quantum optimization. The new method is based on the physics of domain walls in one…
Finding spin-glass ground states using quantum walks
Adam Callison, Nicholas Chancellor, Florian Mintert +1
Quantum computation using continuous-time evolution under a natural hardware Hamiltonian is a promising near- and mid-term direction toward powerful quantum computing hardware. We…
Embedding quadratization gadgets on Chimera and Pegasus graphs
Nike Dattani, Nick Chancellor
We group all known quadratizations of cubic and quartic terms in binary optimization problems into six and seven unique graphs respectively. We then perform a minor embedding of th…
Pegasus: The second connectivity graph for large-scale quantum annealing hardware
Nike Dattani, Szilard Szalay, Nick Chancellor
Pegasus is a graph which offers substantially increased connectivity between the qubits of quantum annealing hardware compared to the graph Chimera. It is the first fundamental cha…