Recent content by AliceBob

Hi, it's my first time to post here. I'm wondering how we can define "entanglement" for identical particles. More simply, when two bosons are in the following state ( |psi (x) >|phi (y) > + |psi (y) >|phi (x) > ) , are they entangled or not?I have (at least) two ideas: 1. We can define...