Journal
PHYSICAL REVIEW LETTERS
Volume 105, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.243003
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Funding
- United Kingdom EPSRC
- Royal Society
- European Commission through the SCALA network
- European Commission through the AtomChips network
- EPSRC [EP/E036112/1, EP/E043631/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E043631/1, GR/T18332/01, EP/E036112/1] Funding Source: researchfish
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We investigate the use of a Bose-Einstein condensate trapped on an atom chip for making interferometric measurements of small energy differences. We measure and explain the noise in the energy difference of the split condensates, which derives from statistical noise in the number difference. We also consider systematic errors. A leading effect is the variation of the rf magnetic field in the trap with distance from the wires on the chip surface. This can produce energy differences that are comparable with those due to gravity.
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