关于住房业行业定位的讨论

如何对住房业进行行业定位和规范管理,我国学界尚无清晰、完整的理论探讨。本文从住房业的特征、产品属性入手,讨论住房业的行业定位,分析有关的争议,认为住房业高度市场化模式不适合中国国情,应从我国国情出发,明确住房业行业定位。

Separability of Pure States and Mixed States of the Quantum Network of Two Nodes

This article discusses the separability of the pure states and mixed states of the quantum network of two nodes by means of the criterion of no entanglement in terms of the covariance correlation tensor in quantum network theory, i.e. for a composite system consisting of two nodes. The covariance correlation tensor is equal to zero for all possible and .