Physical Ageing and Cohesional Chain Entanglement of Polymers 高聚物的物理老化和链的凝聚缠结
The relationship between the chain entanglement and viscosity in UHMWPE solutions 超高分子量聚乙烯在溶液中的链缠结与黏度的关系
PE could not reduce effectively the chain entanglement density of UHMWPE, the enhancement of processability of UHMWPE by the addition of PE is rather limited. PE不能有效降低UHMWPE的链缠结密度,因而PE对UHMWPE加工改性效果较差。
Higher chain entanglement density leads to the non Newtonian effect of Ln-PIR. Hence, the relationship between τ_m and M_w deviates from the 3.4th power rule. 由于本体聚合物的链缠结而导致的非牛顿效应使生胶的τm与Mw的关系偏离3.4法则,这可用缠结网络密度来校正。
Most of all, spin chain has been considered the best candidate system for achieve quantum entanglement. 尤其是自旋链一直被认为是实现量子纠缠的最佳候选体系。
We investigate the effect of phase decoherence on quantum communication through Heisenberg chain and show how to improve the entanglement and states transfer in the presence of phase decoherence by controlling the phase shift and the next-nearest-neighbor interactions. 研究结果表明我们可以用次近邻相互作用和相位移动提高传递量子态和纠缠的保真度。
Here, we study the character of quantum state, teleportation, quantum clone base on spin chain system, and the main results include: ( 1) We study the thermal entanglement and mixture in a spin system. 这里,我们对基于自旋链系统中的量子态的特性,量子态的传送和量子克隆等相关内容进行研究,主要研究成果为:(1)研究了自旋链中的热纠缠和混度。
And we found that the mechanisms of shish-kebab is not coil-stretch mechanism but stretching of chain segments between entanglement points. 发现shish-kebab形成的机理不是传统认为的由伸直链形成,而是只需要缠结点间链段伸直就可以。