Entanglement entropy

• What Is a Good QFT Text on Entanglement Entropy?
  For a first focused treatment of entanglement entropy in quantum field theory, start with Nishioka’s review, then follow a topic-specific reference.
• How Is MPS Bond Dimension Related to Entanglement?
  An MPS bond of dimension D limits the Schmidt rank across its cut to D and the entanglement entropy to log D, but need not saturate either bound.