Limitations in Quantum Computing from Resource Constraints - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue PRX Quantum Année : 2021

Limitations in Quantum Computing from Resource Constraints

Résumé

Fault-tolerant schemes can use error correction to make a quantum computation arbitrarily ac- curate, provided that errors per physical component are smaller than a certain threshold and in- dependent of the computer size. However in current experiments, physical resource limitations like energy, volume or available bandwidth induce error rates that typically grow as the computer grows. Taking into account these constraints, we show that the amount of error correction can be optimized, leading to a maximum attainable computational accuracy. We find this maximum for generic situations where noise is scale-dependent. By inverting the logic, we provide experimenters with a tool to finding the minimum resources required to run an algorithm with a given computational accuracy. When combined with a full-stack quantum computing model, this provides the basis for energetic estimates of future large-scale quantum computers.

Dates et versions

hal-03430417 , version 1 (16-11-2021)

Identifiants

Citer

Marco Fellous-Asiani, Jing Hao Chai, Robert Whitney, Alexia Auffèves, Hui Khoon Ng. Limitations in Quantum Computing from Resource Constraints. PRX Quantum, 2021, 2 (4), pp.040335. ⟨10.1103/PRXQuantum.2.040335⟩. ⟨hal-03430417⟩
86 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More