activity
20242026
collaborators

5 papers

quant-ph2026

Sequences of Bivariate Bicycle Codes from Covering Graphs

Benjamin C. B. Symons, Abhishek Rajput, Dan E. Browne

We show that given an instance of a bivariate bicycle (BB) code, it is possible to generate an infinite sequence of new BB codes using increasingly large covering graphs of the ori…

quant-ph2025

Resource-optimized fault-tolerant simulation of the Fermi-Hubbard model and high-temperature superconductor models

Angus Kan, Benjamin Symons

Exploring low-cost applications is paramount to creating value in early fault-tolerant quantum computers. Here we optimize both gate and qubit counts of recent algorithms for simul…

quant-ph2025

Evolving a multi-population evolutionary-QAOA on distributed QPUs

Francesca Schiavello, Edoardo Altamura, Ivano Tavernelli +2

Our work integrates an Evolutionary Algorithm (EA) with the Quantum Approximate Optimization Algorithm (QAOA) to optimize ansatz parameters in place of traditional gradient-based m…

quant-ph2024

Challenges and Opportunities in Quantum Optimization

Amira Abbas, Andris Ambainis, Brandon Augustino +43

Recent advances in quantum computers are demonstrating the ability to solve problems at a scale beyond brute force classical simulation. As such, a widespread interest in quantum a…

quant-ph2024

Efficient Parameter Optimisation for Quantum Kernel Alignment: A Sub-sampling Approach in Variational Training

M. Emre Sahin, Benjamin C. B. Symons, Pushpak Pati +5

Quantum machine learning with quantum kernels for classification problems is a growing area of research. Recently, quantum kernel alignment techniques that parameterise the kernel…