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- Fringe spacing and phase of interfering matter waves
- Vainio, O.; Vale, C. J.; Davis, M. J.; Heckenberg, N. R.; Rubinsztein-Dunlop, H.
- We experimentally investigate the outcoupling of atoms from Bose-Einstein condensates using two radio-frequency (rf) fields in the presence of gravity. We show that the fringe separation in the resulting interference pattern derives entirely from the energy difference between the two rf fields and not the gravitational potential difference between the two resonances. We subsequently demonstrate how the phase and polarization of the rf radiation directly control the phase of the matter wave interference and provide a semiclassical interpretation of the results.
- Publication type
- Journal article
- Physical Review A: Atomic, Molecular, and Optical Physics, Vol. 73, no. 6 (2006), Article no. 063613
- Publication year
- FOR Code(s)
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics; 0204 Condensed Matter Physics; 0205 Optical Physics
- Bose-Einstein condensates; Fringe spacing; Gravimeters; Gravitational potential difference; Interfering matter waves; Light interference; Natural frequencies; Quantum theory; Radio-frequency fields; Resonance; RF
- American Physical Society
- Publisher URL
- Copyright © 2006 American Physical Society. The accepted manuscript is reproduced in accordance with the copyright policy of the publisher.
- Full text
- Peer reviewed