197 citations · 527 across the 20 of their papers we have counts for
6 papers · 1 filter
Spatial correlations in the qubit properties of D-Wave 2000Q measured and simulated qubit networks
Jessica Park, Susan Stepney, Irene D'Amico
We show strong positive spatial correlations in the qubits of a D-Wave 2000Q quantum annealing chip that are connected to qubits outside their own unit cell. By simulating the dyna…
The Geometry of Speed Limiting Resources in Physical Models of Computation
Benjamin Russell, Susan Stepney
We study the maximum speed of quantum computation and how it is affected by limitations on physical resources. We show how the resulting concepts generalize to a broader class of p…
A Geometrical Derivation of a Family of Quantum Speed Limit Results
Benjamin Russell, Susan Stepney
We derive a family of quantum speed limit results in time independent systems with pure states and a finite dimensional state space, by using a geometric method based on right inva…
Zermelo Navigation in the Quantum Brachistochrone
Benjamin Russell, Susan Stepney
We analyse the optimal times for implementing unitary quantum gates in a constrained finite dimensional controlled quantum system. The family of constraints studied is that the per…
Zermelo Navigation and a Speed Limit to Quantum Information Processing
Benjamin Russell, Susan Stepney
We use a specific geometric method to determine speed limits to the implementation of quantum gates in controlled quantum systems that have a specific class of constrained control…
Highly entangled multi-qubit states with simple algebraic structure
Juan E. Tapiador, Julio C. Hernandez-Castro, John A. Clark +1
Recent works by Brown et al and Borras et al have explored numerical optimisation procedures to search for highly entangled multi-qubit states according to some computationally tra…