Perspectives on application-specific quantum computers

Quantum computers require major hardware developments to meet their expectations. In IQM we take inspiration from classical, application specific integrated chips (ASICs) to develop application specific quantum computers, or Q-ASICs, where the hardware and the quantum algorithms are co-designed to optimize the computational power [1]. Some of the tools used to build Q-ASICs include combining digital with analog operations [2], adapting the chip topology [3] or considering computational elements beyond qubits, such as resonators or quantum circuit refrigerators. In this talk we provide an overview of this approach and discuss some of the recent results obtained in our teams [4,5].

[1] Closing the gaps in Quantum Computing: Co-Development and Co-Design, Digitale Welt, Issue

2/2021

[2] Digital-Analog Quantum Computation, A. Parra-Rodriguez, P. Lougovski, L. Lamata, E. Solano,

M. Sanz, Phys. Rev. A 101, 022305 (2020)

[3] Software-Hardware Co-Optimization for Computational Chemistry on Superconducting Quantum

Processors, G. Li, Y. Shi, A. Javadi-Abhari, https://arxiv.org/abs/2105.07127

[4] Benchmarking digital-analog quantum algorithms against their digital version, IQM team, in

preparation.

[5] Co-Design quantum simulation of nanoscale NMR, IQM team, in preparation.

(1) QI department, IQM Germany GmbH

(2) E&D department, IQM Finland Oy