English

On nonlinear transformations in quantum computation

Quantum Physics 2023-02-16 v2

Abstract

While quantum computers are naturally well-suited to implementing linear operations, it is less clear how to implement nonlinear operations on quantum computers. However, nonlinear subroutines may prove key to a range of applications of quantum computing from solving nonlinear equations to data processing and quantum machine learning. Here we develop a series of basic subroutines for implementing nonlinear transformations of input quantum states. Our algorithms are framed around the concept of a weighted state, a mathematical entity describing the output of an operational procedure involving both quantum circuits and classical post-processing.

Keywords

Cite

@article{arxiv.2112.12307,
  title  = {On nonlinear transformations in quantum computation},
  author = {Zoë Holmes and Nolan Coble and Andrew T. Sornborger and Yiğit Subaşı},
  journal= {arXiv preprint arXiv:2112.12307},
  year   = {2023}
}

Comments

10 pages, 9 figures in the main text. 14 pages, 6 figures in the Appendices

R2 v1 2026-06-24T08:28:57.563Z