The two-qubit singlet/triplet measurement is universal for quantum computing given only maximally-mixed initial states
Quantum Physics
2023-11-13 v3
Abstract
We prove the STP=BQP conjecture of Freedman, Hastings and Shokrian-Zini [1], namely that the two-qubit singlet/triplet measurement is quantum computationally universal given only an initial ensemble of maximally mixed single qubits. This provides a method for quantum computing that is fully rotationally symmetric (i.e. reference frame independent), using primitives that are both physically very-accessible and provably the simplest possible.
Cite
@article{arxiv.2107.03239,
title = {The two-qubit singlet/triplet measurement is universal for quantum computing given only maximally-mixed initial states},
author = {Terry Rudolph and Shashank Soyuz Virmani},
journal= {arXiv preprint arXiv:2107.03239},
year = {2023}
}
Comments
Third version: significant changes to presentation, title change, 9 pages, one figure