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Trapped Ion Quantum Computing

Low-depth, compact and error-tolerant photonic matrix-vector multiplication beyond the unitary group

arXiv
Authors: S. A. Fldzhyan, M. Yu. Saygin, S. S. Straupe

Year

2024

Paper ID

64715

Status

Preprint

Abstract Read

~2 min

Abstract Words

98

Citations

N/A

Abstract

Large-scale programmable photonic circuits are opening up new possibilities for information processing providing fast and energy-efficient means for matrix-vector multiplication. Here, we introduce a novel architecture of photonic circuits capable of implementing non-unitary transfer matrices, usually required by photonic neural networks, iterative equation solvers or quantum samplers. Our architecture exploits compact low-depth beam-splitter meshes rather than bulky fully connected mixing blocks used in previous designs, making it more compatible with planar integrated photonics technology. We have shown that photonic circuits designed with our architecture have lower depth than their standard counterparts and are extremely tolerant to hardware errors.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2024 reference point for readers tracking recent quantum research.
  • Large-scale programmable photonic circuits are opening up new possibilities for information processing providing fast and energy-efficient means for matrix-vector multiplication.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2408.00669 [2] arXiv https://arxiv.org/abs/2408.00669 [3] Publisher https://arxiv.org/abs/2408.00669

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