Analogue Gravitational Lensing in Bose-Einstein Condensates
Decheng Ma,
Chenglong Jia,
Enrique Solano,
Lucas Chibebe Céleri
Affiliations
Decheng Ma
Department of Physics, Anshan Normal University, Anshan 114056, China
Chenglong Jia
Lanzhou Center for Theoretical Physics, Key Laboratory of Theoretical Physics of Gansu Province, and Key Laboratory of Quantum Theory and Applications of MoE, Lanzhou University, Lanzhou 730000, China
We consider the propagation of phonons in the presence of a particle sink with radial flow in a Bose–Einstein condensate. Because the particle sink can be used to simulate a static acoustic black hole, the phonon would experience a considerable spacetime curvature at appreciable distance from the sink. The trajectory of the phonons is bended after passing by the particle sink, which can be used as a simulation of the gravitational lensing effect in a Bose–Einstein condensate. Possible experimental implementations are discussed.
