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Quantum State Preparation Representation

Rational degree is polynomially related to degree

arXiv
Authors: Matt Kovacs-Deak, Daochen Wang, Rain Zimin Yang

Year

2026

Paper ID

3882

Status

Preprint

Abstract Read

~2 min

Abstract Words

53

Citations

N/A

Abstract

We prove that deg(f) leq 2 rdeg(f)4 for every Boolean function f, where deg(f) is the degree of f and rdeg(f) is the rational degree of f. This resolves the second of the three open problems stated by Nisan and Szegedy, and attributed to Fortnow, in 1994.

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  • This paper contributes to the Quantum State Preparation & Representation research area in the Quantum Articles archive.
  • It adds a 2026 reference point for readers tracking recent quantum research.
  • We prove that deg(f) leq 2 rdeg(f)^4 for every Boolean function f, where deg(f) is the degree of f and rdeg(f) is the rational degree of f.

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