Expressing and analyzing quantum algorithms with qualtran

MP Harrigan, T Khattar, C Yuan, A Peduri… - arxiv preprint arxiv …, 2024 - arxiv.org
Quantum computing's transition from theory to reality has spurred the need for novel
software tools to manage the increasing complexity, sophistication, toil, and fallibility of …

Entanglement-assisted phase-estimation algorithm for calculating dynamical response functions

R Sakuma, S Kanno, K Sugisaki, T Abe, N Yamamoto - Physical Review A, 2024 - APS
Dynamical response functions are fundamental quantities to describe the excited-state
properties in quantum many-body systems. Quantum algorithms have been proposed to …

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

A Kan, B Symons - arxiv preprint arxiv:2411.02160, 2024 - arxiv.org
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 …

Nonlinear Spectroscopy via Generalized Quantum Phase Estimation

I Loaiza, D Motlagh, K Hejazi, MS Zini… - arxiv preprint arxiv …, 2024 - arxiv.org
Response theory has a successful history of connecting experimental observations with
theoretical predictions. Of particular interest is the optical response of matter, from which …

Quantum state preparation via piecewise QSVT

O O'Brien, C Sünderhauf - arxiv preprint arxiv:2409.07332, 2024 - arxiv.org
Efficient state preparation is essential for implementing efficient quantum algorithms. Whilst
several techniques for low-cost state preparation exist, this work facilitates further classes of …