Journal
PHYSICAL REVIEW LETTERS
Volume 100, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.100.100402
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Funding
- Engineering and Physical Sciences Research Council [EP/E036473/1, EP/D066581/1] Funding Source: researchfish
- EPSRC [EP/D066581/1, EP/E036473/1] Funding Source: UKRI
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We show that the decay of a soliton into vortices provides a mechanism for measuring the initial phase difference between two merging Bose-Einstein condensates. At very low temperatures, the mechanism is resonant, operating only when the clouds start in antiphase. But at higher temperatures, phase fluctuations trigger vortex production over a wide range of initial relative phase, as observed in recent experiments at MIT. Choosing the merge time to maximize the number of vortices created makes the interferometer highly sensitive to spatially varying phase patterns and hence atomic movement.
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