Analogue quantum gravity phenomenology from a two-component Bose – Einstein condensate

  title={Analogue quantum gravity phenomenology from a two-component Bose – Einstein condensate},
  author={Stefano Liberati and Silke E. Ch. Weinfurtner},
We present an analogue emergent spacetime that reproduces the salient features of the most common ansätze used for quantum gravity phenomenology. We do this by investigating a system of two coupled Bose–Einstein condensates. This system can be tuned to have two “phonon” modes (one massive, one massless) which share the same limiting speed in the hydrodynamic approximation [Phys. Rev. D72 (2005) 044020, gr-qc/0506029; cond-mat/0409639]. The system nevertheless possesses (possibly nonuniversal… CONTINUE READING

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