Fidelity preserving maps on density operators
算子代数
2009-11-07 v2 数学物理
math.MP
量子物理
摘要
We prove that any bijective fidelity preserving transformation on the set of all density operators on a Hilbert space is implemented by an either unitary or antiunitary operator on the underlying Hilbert space.
引用
@article{arxiv.math/0108060,
title = {Fidelity preserving maps on density operators},
author = {Lajos Molnar},
journal= {arXiv preprint arXiv:math/0108060},
year = {2009}
}
备注
This is corrected version of the paper math.OA/0108060. The paper has already appeared in ROMP (vol. 48 (2001), 299-303)