On the robustness of entanglement in analogue gravity systems

Understand

We investigate the possibility to generate quantum-correlated quasi-particles utilizing analogue gravity systems.

• The quantumness of these correlations is a key aspect of analogue gravity effects and their presence allows for a clear separation between classical and quantum analogue gravity effects.
• However, experiments in analogue systems, such as Bose-Einstein condensates, and shallow water waves, are always conducted at non-ideal conditions, in particular, one is dealing with dispersive media at nonzero temperatures.
• We analyze the influence of the initial temperature on the entanglement generation in analogue gravity phenomena.