Momentum entanglement for atom interferometry

Fabian Anders; Alexander Idel; Bernd Meyer; Carsten Klempt

doi:10.1117/12.2588445

5 March 2021 Momentum entanglement for atom interferometry

Fabian Anders, Alexander Idel, Bernd Meyer, Carsten Klempt

Proceedings Volume 11700, Optical and Quantum Sensing and Precision Metrology; 117000C (2021) https://doi.org/10.1117/12.2588445
Event: SPIE OPTO, 2021, Online Only

Abstract

Compared to light interferometers, the flux in cold-atom interferometers is low and the associated shot noise large. Sensitivities beyond these limitations require the preparation of entangled atoms in different momentum modes. Here, we demonstrate a source of entangled atoms that is compatible with state-of-the-art interferometers. Entanglement is transferred from the spin degree of freedom of a Bose-Einstein condensate to well-separated momentum modes, witnessed by a squeezing parameter of -3.1(8) dB. Entanglement-enhanced atom interferometers open up unprecedented sensitivities for quantum gradiometers or gravitational wave detectors.

Conference Presentation

Citation Download Citation

Fabian Anders, Alexander Idel, Bernd Meyer, and Carsten Klempt "Momentum entanglement for atom interferometry", Proc. SPIE 11700, Optical and Quantum Sensing and Precision Metrology, 117000C (5 March 2021); https://doi.org/10.1117/12.2588445

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