T -Interferometer for atoms.

Autor: Zimmermann, M., Efremov, M., Roura, A., Schleich, W., DeSavage, S., Davis, J., Srinivasan, A., Narducci, F., Werner, S., Rasel, E.
Předmět:
Zdroj: Applied Physics B: Lasers & Optics; Apr2017, Vol. 123 Issue 4, p1-17, 17p
Abstrakt: The quantum mechanical propagator of a massive particle in a linear gravitational potential derived already in 1927 by Kennard [2, 3] contains a phase that scales with the third power of the time T during which the particle experiences the corresponding force. Since in conventional atom interferometers the internal atomic states are all exposed to the same acceleration a, this $$T^3$$ -phase cancels out and the interferometer phase scales as $$T^2$$ . In contrast, by applying an external magnetic field we prepare two different accelerations $$a_1$$ and $$a_2$$ for two internal states of the atom, which translate themselves into two different cubic phases and the resulting interferometer phase scales as $$T^3$$ . We present the theoretical background for, and summarize our progress towards experimentally realizing such a novel atom interferometer. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index