用于标识所有纠缠态的两个 Dirac 旋量的九个洛伦兹协变双张量
量子物理
2023-08-08 v1
摘要
本文考虑了两个类空间隔的 Dirac 粒子的旋量自由度，并构造了一组九个局域洛伦兹协变双张量。其中四个双张量此前已在 [Phys. Rev. A 105, 032402 (2022), arXiv:2103.07784] 中描述。该双张量组的性质是：当且仅当两个粒子的态为乘积态时，这九个双张量同时为零。因此，这组双张量可指示两个类空间隔的 Dirac 粒子之间任意类型的旋量纠缠。
引用
@article{arxiv.2308.03482,
title = {Nine Lorentz covariant bitensors for two Dirac spinors to indicate all entangled states},
author = {Markus Johansson},
journal= {arXiv preprint arXiv:2308.03482},
year = {2023}
}
备注
9 pages; The submission was noted by the arXiv admin as having a text overlap with a submission on the same general topic arXiv:2308.00896 due to the use of some shared terminology