activity
20162022
most citedHybrid quantum-classical algorithms in the noisy intermediate-scale quantum era and beyond

135 citations · 263 across the 8 of their papers we have counts for

collaborators

8 papers

quant-ph2022★ 8 cited

Improved maximum-likelihood quantum amplitude estimation

Adam Callison, Dan E. Browne

Quantum amplitude estimation is a key subroutine in a number of powerful quantum algorithms, including quantum-enhanced Monte Carlo simulation and quantum machine learning. Maximum…

quant-ph2022★ 135 cited

Hybrid quantum-classical algorithms in the noisy intermediate-scale quantum era and beyond

Adam Callison, Nicholas Chancellor

Hybrid quantum-classical algorithms are central to much of the current research in quantum computing, particularly when considering the noisy intermediate-scale quantum (NISQ) era,…

quant-ph2022★ 8 cited

Comparing the hardness of MAX 2-SAT problem instances for quantum and classical algorithms

Puya Mirkarimi, Adam Callison, Lewis Light +2

An algorithm for a particular problem may find some instances of the problem easier and others harder to solve, even for a fixed input size. We numerically analyse the relative har…

quant-ph2022★ 3 cited

Using copies to improve precision in continuous-time quantum computing

Jemma Bennett, Adam Callison, Tom O'Leary +3

In the quantum optimisation setting, we build on a scheme introduced by Young et al [PRA 88, 062314, 2013], where physical qubits in multiple copies of a problem encoded into an Is…

quant-ph2020★ 37 cited

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…

quant-ph2020★ 26 cited

Two quantum Ising algorithms for the Shortest Vector Problem: one for now and one for later

David Joseph, Adam Callison, Cong Ling +1

Quantum computers are expected to break today's public key cryptography within a few decades. New cryptosystems are being designed and standardised for the post-quantum era, and a…