Extending the computational reach of a superconducting qutrit processor

N Goss, S Ferracin, A Hashim… - npj Quantum …, 2024 - nature.com
Quantum computing with qudits is an emerging approach that exploits a larger, more
connected computational space, providing advantages for many applications, including …

Demonstration of a quantum-classical coprocessing protocol for simulating nuclear reactions

F Turro, T Chistolini, A Hashim, Y Kim, W Livingston… - Physical Review A, 2023 - APS
Quantum computers hold great promise for exact simulations of nuclear dynamical
processes (eg, scattering and reactions), which are paramount to the study of nuclear matter …

A quantum-classical co-processing protocol towards simulating nuclear reactions on contemporary quantum hardware

F Turro, T Chistolini, A Hashim, Y Kim… - arxiv preprint arxiv …, 2023 - arxiv.org
Quantum computers hold great promise for arriving at exact simulations of nuclear
dynamical processes (eg, scattering and reactions) that are paramount to the study of …

Synergetic quantum error mitigation by randomized compiling and zero-noise extrapolation for the variational quantum eigensolver

T Kurita, H Qassim, M Ishii, H Oshima, S Sato… - arxiv preprint arxiv …, 2022 - arxiv.org
We propose a quantum error mitigation strategy for the variational quantum eigensolver
(VQE) algorithm. We find, via numerical simulation, that very small amounts of coherent …

Quantum computation of frequency-domain molecular response properties using a three-qubit iToffoli gate

SN Sun, B Marinelli, JM Koh, Y Kim, LB Nguyen… - npj Quantum …, 2024 - nature.com
The quantum computation of molecular response properties on near-term quantum
hardware is a topic of substantial interest. Computing these properties directly in the …

Applying the noiseless extrapolation error mitigation protocol to calculate real-time quantum field theory scattering phase shifts

Z Parks, A Carignan-Dugas, E Gustafson, Y Meurice… - Physical Review D, 2024 - APS
Real-time scattering calculations on a noisy intermediate scale quantum (NISQ) quantum
computer are disrupted by errors that accumulate throughout the circuits. To improve the …

Pauli transfer matrices

L Hantzko, L Binkowski, S Gupta - arxiv preprint arxiv:2411.00526, 2024 - arxiv.org
Analysis of quantum processes, especially in the context of noise, errors, and decoherence
is essential for the improvement of quantum devices. An intuitive representation of those …

Combinatorial optimization with quantum imaginary time evolution

NM Bauer, R Alam, G Siopsis, J Ostrowski - Physical Review A, 2024 - APS
We use quantum imaginary-time evolution (QITE) to solve polynomial unconstrained binary
optimization (PUBO) problems. We show that a linear ansatz yields good results for a wide …

Restricted Randomized Benchmarking with Universal Gates of Fixed Sequence Length

M Mehrani, K Masoudi, R Mezher, E Kashefi… - arxiv preprint arxiv …, 2024 - arxiv.org
The standard randomized benchmarking protocol requires access to often complex
operations that are not always directly accessible. Compiler optimization does not always …

Simplifying errors by symmetry and randomisation

J Mills, D Sadhukhan, E Kashefi - arxiv preprint arxiv:2303.02712, 2023 - arxiv.org
We present a set of methods to generate less complex error channels by quantum circuit
parallelisation. The resulting errors are simplified as a consequence of their symmetrisation …