Curved and expanding spacetime geometries in Bose-Einstein condensates
![image](http://tobi-haas.de/wp-content/uploads/2023/09/Curved-and-expanding-spacetime-geometries-in-Bose-Einstein-condensates.jpg)
Details
We discuss how the acoustic metric in a Bose-Einstein condensate can be experimentally designed to realize curved spacetime geometries and to simulate cosmological particle production.