Measuring atomic NOON-states and using them to make precision measurements

Details Measuring atomic NOON-states and using them to make precision measurements Measuring atomic NOON-states and using them to make precision measurements

2009-07-18

arxiv.org/abs/0907.3213v1

New J. Phys. 11, 103040 (2009)

Physics

Quantum Physics

14 preprint pages, 7 figures

Scientific paper

A scheme for creating NOON-states of the quasi-momentum of ultra-cold atoms has recently been proposed [New J. Phys. 8, 180 (2006)]. This was achieved by trapping the atoms in an optical lattice in a ring configuration and rotating the potential at a rate equal to half a quantum of angular momentum . In this paper we present a scheme for confirming that a NOON-state has indeed been created. This is achieved by spectroscopically mapping out the anti-crossing between the ground and first excited levels by modulating the rate at which the potential is rotated. Finally we show how the NOON-state can be used to make precision measurements of rotation.

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