Observation of entanglement propagation in a quantum many-body system

Understand

The key to explaining a wide range of quantum phenomena is understanding how entanglement propagates around many-body systems.

• Furthermore, the controlled distribution of entanglement is of fundamental importance for quantum communication and computation.
• In many situations, quasiparticles are the carriers of information around a quantum system and are expected to distribute entanglement in a fashion determined by the system interactions.
• Here we report on the observation of magnon quasiparticle dynamics in a one-dimensional many-body quantum system of trapped ions representing an Ising spin model.