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arXiv · 1310.2123

Ground state of the double-well condensate for quantum metrology

Juha Javanainen·Han Chen
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Abstract

We discuss theoretically the ground state of a Bose-Einstein condensate with attractive atom-atom interactions in a double-well trap as a starting point of Heisenberg-limited atom interferometry. The dimensionless parameter governing the quality of the ground state for this purpose is identified. The near-degeneracy between the ground state and the first excited state severely curtails the prospects of the thermally prepared ground state in quantum metrology.

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Juha Javanainen, Han Chen. 2013-10-08. Ground state of the double-well condensate for quantum metrology. https://doi.org/10.1103/physreva.89.033613

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