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- E Kajari, R Walser, W P Schleich, A Delgado
- 2008

We present exact expressions for the Sagnac effect of Gödel's Universe. For this purpose we first derive a formula for the Sagnac time delay along a circular path in the presence of an arbitrary stationary metric in cylindrical coordinates. We then apply this result to Gödel's metric for two different experimental situations: First, the light source and the… (More)

- T van Zoest, N Gaaloul, Y Singh, H Ahlers, W Herr, S T Seidel +22 others
- Science
- 2010

Albert Einstein's insight that it is impossible to distinguish a local experiment in a "freely falling elevator" from one in free space led to the development of the theory of general relativity. The wave nature of matter manifests itself in a striking way in Bose-Einstein condensates, where millions of atoms lose their identity and can be described by a… (More)

- E Kajari, M Buser, C Feiler, W P Schleich
- 2009

" Whatever nature has in store for mankind, unpleasant as it may be, men must accept, for ignorance is never better than knowledge. " Enrico Fermi Summary. — We compare and contrast the different points of view of rotation in general relativity, put forward by Mach, Thirring and Lense, and Gödel. Our analysis relies on two tools: (i) the Sagnac effect which… (More)

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