Entanglement purification and quantum error correction

Understand

We give a review on entanglement purification for bipartite and multipartite quantum states, with the main focus on theoretical work carried out by our group in the last couple of years.

• We discuss entanglement purification in the context of quantum communication, where we emphasize its close relation to quantum error correction.
• Various bipartite and multipartite entanglement purification protocols are discussed, and their performance under idealized and realistic conditions is studied.
• Several applications of entanglement purification in quantum communication and computation are presented, which highlights the fact that entanglement purification is a fundamental tool in quantum information processing.