Entangling moving cavities in non-inertial frames

Understand

An open question in the field of relativistic quantum information is how parties in arbitrary motion may distribute and store quantum entanglement.

• We propose a scheme for storing quantum information in the field modes of cavities moving in flat space-time and analyze it in a quantum field theoretical framework.
• In contrast to previous work that found entanglement degradation between observers moving with uniform acceleration, we find the quantum information in such systems is protected.
• We further discuss a method for establishing the entanglement in the first place and show that in principle it is always possible to produce maximally entangled states between the cavities.