两个耦合量子比特以精确 Bures 概率 2^(1/2)/24 经典关联
量子物理
2007-05-23 v2 数学物理
math.MP
摘要
本论文已撤回。
引用
@article{arxiv.quant-ph/0203088,
title = {Two Coupled Qubits are Classically Correlated with an Exact Bures Probability of 2^(1/2)/24},
author = {Paul B. Slater},
journal= {arXiv preprint arXiv:quant-ph/0203088},
year = {2007}
}
备注
In this paper, we relied upon the Euler angle parameterization of the 4 x 4 density matrices given in math-ph/0202002. However, subsequent analyses of ours revealed that the ranges of the theta's given in eq. (46) there were too broad to function as claimed. Therefore, we withdraw the paper. Ongoing quasi-Monte Carlo analyses (scrambled Halton sequences), with corrected ranges, now appear to show that if there is an exact simple Bures probability of separability of two qubits, it is 8/(11 \pi^2) = .0736881