Realizing a spatially correlated lattice interferometer

• URL: http://arxiv.org/abs/2406.16847v1
• Date: Mon, 24 Jun 2024 17:54:03 GMT
• Title: Realizing a spatially correlated lattice interferometer
• Authors: Peng Peng, Dekai Mao, Yi Liang, Guoling Yin, Hongmian Shui, Bo Song, Xiaoji Zhou,
• Abstract summary: Atom interferometers provide a powerful tool for measuring physical constants and testifying fundamental physics with unprecedented precision. Here, we report on realizing a Ramsey-Bord'e interferometer of coherent matter waves dressed by a moving optical lattice in the gravity direction. Our findings agree well with theoretical simulations, paving the way for high-precision interferometry with ultracold atoms.
• Score: 8.81055904289318
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Atom interferometers provide a powerful tool for measuring physical constants and testifying fundamental physics with unprecedented precision. Conventional atom interferometry focuses on the phase difference between two paths and utilizes matter waves with fixed coherence. Here, we report on realizing a Ramsey-Bord\'e interferometer of coherent matter waves dressed by a moving optical lattice in the gravity direction, and explore the resulting interference along multiple paths with tunable coherence. We investigate spatial correlations of atoms both within the lattice and between two arms by interferometry, and observe the emerging multiple interference peaks owing to the long-range coherence nature of the Bose-Einstein condensate. Our findings agree well with theoretical simulations, paving the way for high-precision interferometry with ultracold atoms.

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