论文标题
超出密度矩阵：几何量子状态
Beyond Density Matrices: Geometric Quantum States
论文作者
论文摘要
用密度矩阵识别量子系统的状态。尽管它们的概率解释植根于整体理论，但密度矩阵体现了已知的缺点。他们没有完全表达合奏的身体实现。方便地，仅处理投影和积极的操作员值测量的统计结果时，这并不是一个障碍。为了跟踪整体实现并消除缺点，我们探索几何量子状态并解释其身体意义。我们强调了两个主要后果：一个是量子状态操作中的一个，另一种是量子热力学。
A quantum system's state is identified with a density matrix. Though their probabilistic interpretation is rooted in ensemble theory, density matrices embody a known shortcoming. They do not completely express an ensemble's physical realization. Conveniently, when working only with the statistical outcomes of projective and positive operator-valued measurements this is not a hindrance. To track ensemble realizations and so remove the shortcoming, we explore geometric quantum states and explain their physical significance. We emphasize two main consequences: one in quantum state manipulation and one in quantum thermodynamics.
