Recent content by particleinmc

Thanks for reading and comment. I find out that I need to understand mixed state, Density matrix and etc. before understand No-communication theorem. But it seems it is difficult to understand for me.

There are a pair of AB particle in entangled state: |fin>=|00>+|11> (where the first digit is the state of particle A and the second digit is the state of B particle) Lets prepare 100 pairs of AB particles. Alice and Bob each take 100 A particles and 100 B particles respectively, and they...