连续最优系综I：鲁棒可分量子态的几何刻画
Continuous optimal ensembles I: A geometrical characterization of robustly separable quantum states
摘要：
给出了二分量子系统鲁棒可分（即在足够小的变化下保持可分）混合态的几何刻划。结果表明，任何这样的状态的密度矩阵可以表示为在整个系统的状态空间中的所有自伴算子的欧几里德空间中的超曲面的法向量。给出了该超曲面的表达式。
英文摘要：
A geometrical characterization of robustly separable (that is, remaining separable under sufficiently small variiations) mixed states of a bipartite quantum system is given. It is shown that the density matrix of any such state can be represented as a normal vector to a hypersurface in the Euclidean space of all self-adjoint operators in the state space of the whole system. The expression for this hypersurface is provided.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
