Parity Effects in Spin Decoherence
量子物理
2009-11-07 v3 介观与纳米尺度物理
摘要
We demonstrate that decoherence of many-spin systems can drastically differ from decoherence of single-spin systems. The difference originates at the most basic level, being determined by parity of the central system, i.e. by whether the system comprises even or odd number of spin-1/2 entities. Therefore, it is very likely that similar distinction between the central spin systems of even and odd parity is important in many other situations. Our consideration clarifies the physical origin of the unusual two-step decoherence found previously in the two-spin systems.
关键词
引用
@article{arxiv.quant-ph/0212097,
title = {Parity Effects in Spin Decoherence},
author = {A. Melikidze and V. V. Dobrovitski and H. A. De Raedt and M. I. Katsnelson and B. N. Harmon},
journal= {arXiv preprint arXiv:quant-ph/0212097},
year = {2009}
}
备注
RevTeX 4, 5 pages, 2 figures; acknowledgments added; replaced with the published version; journal reference added