Year: 2023
Type: preprint
Abstract: Quantum simulation and sensing hold great promise for providing new insights into nature, from understanding complex interacting systems to searching for undiscovered physics. Large ensembles of laser-cooled atoms interacting via infinite-range photon mediated interactions are a powerful platform for both endeavours. Here, we realize for the first time momentum-exchange interactions in which atoms exchange their momentum states via collective emission and absorption of photons from a common cavity mode. The momentum-exchange interaction leads to an observed all-to-all Ising-like interaction in a matter-wave interferometer, which is useful for entanglement generation. A many-body energy gap also emerges, effectively binding interferometer matter-wave packets together to suppress Doppler dephasing, akin to Mössbauer spectroscopy. The tunable momentum-exchange interaction provides a new capability for quantum interaction-enhanced matter-wave interferometry and for realizing exotic behaviors including simulations of superconductors and dynamical gauge fields.
Source: arXiv (Cornell University)
Authors: Luo, Chengyi, Zhang, Haoqing, Koh, Vanessa P. W., Wilson, John D., Chu, Anjun, Holland, Murray J., Rey, Ana Maria, Thompson, James K.
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1523888516, G2279853913, G3392305090, G3515266184, G3997690, JILA PFC: Measurement, Manipulation, and Meaning at the Quantum Frontier, QLCI-CI: NSF Quantum Leap Challenge Institute for Enhanced Sensing and Distribution Using Correlated Quantum States, G608057831, G657448715, G6746142562, G6970034002, G7002604833, G7172419705, G7452299184, G8415477955, G894266557
OpenAlex ID: W4362655628