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Q: Fachverband Quantenoptik und Photonik
Q 15: Poster: Quantum Optics and Photonics I
Q 15.52: Poster
Montag, 23. März 2015, 17:00–19:00, C/Foyer
Aspects of Analogue Gravity with Bose-Einstein Condensates — •Andreas Finke1,2, Silke Weinfurtner2, and Peter Kruger1 — 1School of Physics and Astronomy, The University of Nottingham, UK — 2School of Mathematical Sciences, The University of Nottingham
Phononic excitations in an engineered Bose-Einstein condensate (BEC) are one example out of a larger class of physical systems admitting a description very similar to certain models of quantum fields in curved spacetimes. We argue that the large degree of control offered by an atom chip makes it possible to investigate questions about universality and stability of effects analogue to e.g. cosmological particle production or Hawking radiation in a BEC. To increase experimental signatures one is naturally led to the study of non-equilibrium behaviour and corrections from (strong) interactions. We further investigate a way to increase the signature of quantum fluctuations at given background temperature and report on the status of our experiments.