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arXiv · 1907.08223

Renormalized Circuit Complexity

Arpan Bhattacharyya·Pratik Nandy·Aninda Sinha
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Abstract

We propose a modification to Nielsen's circuit complexity for Hamiltonian simulation using the Suzuki-Trotter (ST) method, which provides a network like structure for the quantum circuit. This leads to an optimized gate counting linear in the geodesic distance and spatial volume, unlike in the original proposal. The optimized ST iteration order is correlated with the error tolerance and plays the role of an anti-de Sitter (AdS) radial coordinate. The density of gates is shown to be monotonic with the tolerance and a holographic interpretation using path-integral optimization is given.

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Arpan Bhattacharyya, Pratik Nandy, Aninda Sinha. 2020-02-20. Renormalized Circuit Complexity. https://doi.org/10.1103/physrevlett.124.101602

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