Entanglement in momentum space (A02)

• Subject Area: Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas
• Term: from 2016 to 2024
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 274200144

Project A02 aims to generate quantum-mechanical correlations between spatially separated ultracold atomic ensembles. Our strategy to achieve this is to create the non-classical correlations between atoms in different spin states and transfer them to motional states. Such entangled motional states enable a proof-of-principle operation of a gravimeter with a sensitivity beyond the Standard Quantum Limit. Ultimately, we aim to generate macroscopic, entangled states with metre-scale delocalisations together with project B07, and utilise their extreme sensitivity to probe the gravitational interaction. The project contributes to DQ-mat’s goal of enhancing quantum sensors & metrology for tests of fundamental physics.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1227: Designed Quantum States of Matter (DQ-mat) - generation, manipulation, and detection for metrological applications and tests of fundamental physics
• Applicant Institution: Gottfried Wilhelm Leibniz Universität Hannover
• Project Heads: Professor Dr. Wolfgang Ertmer, until 6/2020; Professor Dr. Carsten Klempt; Professor Dr. Luis Santos