65 citations · 86 across the 7 of their papers we have counts for
14 papers · 1 filter
Cycle discrete-time quantum walks on a noisy quantum computer
Vivek Wadhia, Nicholas Chancellor, Viv Kendon
The rapid development of quantum computing has led to increasing interest in quantum algorithms for a variety of different applications. Quantum walks have also experienced a surge…
A thermodynamic approach to optimization in complex quantum systems
Alberto Imparato, Nicholas Chancellor, Gabriele De Chiara
We consider the problem of finding the energy minimum of a complex quantum Hamiltonian by employing a non-Markovian bath prepared in a low energy state. The energy minimization pro…
Suppressing unwanted fluctuations in QAOA and approximate quantum annealing
Touheed Anwar Atif, Catherine Potts, David Haycraft +2
The quantum approximate optimisation algorithm (QAOA) was partially inspired by digitising quantum annealing. Based on this inspiration, we develop techniques to use the additional…
Performance of Domain-Wall Encoding for Quantum Annealing
Jie Chen, Tobias Stollenwerk, Nicholas Chancellor
In this paper we experimentally test the performance of the recently proposed domain-wall encoding of discrete variables from [Chancellor Quantum Sci. Technol. 4 045004] on Ising m…
Fluctuation guided search in quantum annealing
Nicholas Chancellor
Quantum annealing has great promise in leveraging quantum mechanics to solve combinatorial optimisation problems. However, to realize this promise to it's fullest extent we must ap…
An energetic perspective on rapid quenches in quantum annealing
Adam Callison, Max Festenstein, Jie Chen +3
There are well developed theoretical tools to analyse how quantum dynamics can solve computational problems by varying Hamiltonian parameters slowly, near the adiabatic limit. On t…