Bose-Einstein Condensation in Microgravity.
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| Title: | Bose-Einstein Condensation in Microgravity. |
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| Authors: | van Zoest, T., Gaaloul, N., Singh, Y., Ahlers, H., Herr, W., Seidel, S. T., Ertmer, W., Rasel, E., Eckart, M., Kajari, E., Arnold, S., Nandi, G., Schleich, W. P., Walser, R., Vogel, A., Sengstock, K., Bongs, K., Lewoczko-Adamczyk, W., Schiemangk, M., Schuldt, T. |
| Source: | Science (pre-March 2025). 6/18/2010, Vol. 328 Issue 5985, p1540-1543. 4p. |
| Subjects: | Bose-Einstein condensation, Reduced gravity environments, Physics experiments, General relativity (Physics), Quantum theory, Interferometry |
| Abstract: | 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 single macroscopic wave function. We combine these two topics and report the preparation and observation of a Bose-Einstein condensate during free fall in a 146-meter-tall evacuated drop tower. During the expansion over 1 second, the atoms form a giant coherent matter wave that is delocalized on a millimeter scale, which represents a promising source for matter-wave interferometry to test the universality of free fall with quantum matter. [ABSTRACT FROM AUTHOR] |
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| Database: | Psychology and Behavioral Sciences Collection |
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