Presentation
A Correlation-Aware GKP Decoder for Fault-Tolerant Continuous-Variable Photonic Quantum Computers
DescriptionThe Gottesman–Kitaev–Preskill (GKP) encoding is a promising approach for realizing fault-tolerant continuous-variable (CV) photonic quantum computers.
Recent studies have investigated various GKP decoding algorithms, among which correlation-aware methods that exploit inter-qubit correlations achieve significantly improved error-correction performance.
However, hardware implementation of GKP decoding remains largely unexplored.
Error decoding in CV photonic quantum computers must operate within tens of nanoseconds to match the optical clock frequency.
A straightforward hardware implementation of correlation-aware decoding introduces substantial computational latency due to its arithmetic complexity.
To address this challenge, this paper proposes a high-accuracy and low-latency accelerator architecture optimized for correlation-aware GKP decoding.
Logic synthesis using 7-nm FinFET technology demonstrates that our decoder can complete correlation-aware GKP decoding with in 12.96 ns.
In addition, comprehensive design space exploration is conducted to evaluate tradeoffs among decoding accuracy, latency, and circuit area, leading to design guidelines for future correlation-aware GKP decoder implementations.
Recent studies have investigated various GKP decoding algorithms, among which correlation-aware methods that exploit inter-qubit correlations achieve significantly improved error-correction performance.
However, hardware implementation of GKP decoding remains largely unexplored.
Error decoding in CV photonic quantum computers must operate within tens of nanoseconds to match the optical clock frequency.
A straightforward hardware implementation of correlation-aware decoding introduces substantial computational latency due to its arithmetic complexity.
To address this challenge, this paper proposes a high-accuracy and low-latency accelerator architecture optimized for correlation-aware GKP decoding.
Logic synthesis using 7-nm FinFET technology demonstrates that our decoder can complete correlation-aware GKP decoding with in 12.96 ns.
In addition, comprehensive design space exploration is conducted to evaluate tradeoffs among decoding accuracy, latency, and circuit area, leading to design guidelines for future correlation-aware GKP decoder implementations.
Event Type
Research Manuscript
TimeTuesday, July 282:34pm - 2:47pm PDT
LocationMtg Room 203AB