Application Driven Evaluation of Fault-Tolerant Quantum Computing Architectures
Kevin Obenland
Lincoln Laboratory, Massachusetts Institute of Technology
Quantum Enabled Computing
As the quantum computing community moves away from NISQ platforms to focus on fault-tolerant ones, the types of architectures that are emerging go beyond the simple architectures prevalent in the NISQ era. New fault-tolerant architectures are driven by the requirements of Quantum Error Correction (QEC) codes and the applications that are intended for these platforms. Including details of QEC and application implementation in the evaluation of architectural design trade-offs will increase the fidelity of the assessments of these architectures and enable co-design of the hardware with QEC and algorithm design. At Lincoln Laboratory we have developed the pyLIQTR framework, an application-driven set of tools supporting application implementation and architectural analysis. In this talk, I will describe pyLIQTR and then show an analysis across a wide range of application domains and emerging fault-tolerant architectures. Applications including: lattice spin dynamics and ground-state problems, chemical catalysis, NMR, and electronic structure systems. For architectures, we consider simple lattice-surgery based surface code architectures to architectures based on block codes.
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