Multimode Kapitza–Dirac interferometer on Bose–Einstein condensates with atomic interactions

He, Tian-Chen; Niu, Pengbin

doi:10.1016/j.physleta.2017.01.049

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Cited by 4 publications

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“…For [7], this momentum resolution is 10 −4 k 0 , achievable by further developing the 2 × 10 −4 k 0 resolution measurement of [72]. A Fisher analysis could prove beneficial for evaluating other atom-interferometer-based sensors which produce a complicated output signal, such as schemes utilizing Kapitza-Dirac scattering [79][80][81][82][83][84] or propagation in crossed waveguides [85]. Appendix A: QFI of a particle in a gravitational field Here we give a more detailed derivation of Eq.…”

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confidence: 99%

Optimal matter-wave gravimetry

et al. 2018

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We calculate quantum and classical Fisher informations for gravity sensors based on matterwave interference, and find that current Mach-Zehnder interferometry is not optimally extracting the full metrological potential of these sensors. We show that by making measurements that resolve either the momentum or the position we can considerably improve the sensitivity. We also provide a simple modification that is capable of more than doubling the sensitivity. arXiv:1710.06340v3 [quant-ph]

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