2. Moreover, it leads to some families of rank four entangled states that are distillable. 进一步的,我们也得到了一些可提纯的秩四的纠缠态族。
3. I also prove that the bipartite rank three entangled states are distillable under local operations and classical communication. 我们证明了秩等于三的双体纠缠态在局域操作和经典联系的条件下都是可提纯的。