Superradiance, characterized by the collective, coherent emission of light from an excited ensemble of emitters, generates photonic signals on timescales faster than the natural lifetime of an individual atom. The rapid exchange of coherence between atomic emitters and photonic fields in the superradiant regime enables a fast, broadband quantum memory. We demonstrate this superradiance memory mechanism in an ensemble of cold rubidium atoms and verify that this protocol is suitable for pulses on timescales shorter than the atoms' natural lifetime. Our simulations show that the superradiance memory protocol yields the highest bandwidth storage among protocols in the same system. These high-bandwidth quantum memories provide unique opportunities for fast processing of optical and microwave photonic signals, with applications in large-scale quantum communication and quantum computing technologies.
@article{arxiv.2112.09261,
title = {Superradiance-Mediated Photon Storage for Broadband Quantum Memory},
author = {Anindya Rastogi and Erhan Saglamyurek and Taras Hrushevskyi and Lindsay J. LeBlanc},
journal= {arXiv preprint arXiv:2112.09261},
year = {2022}
}
Comments
The main article consists of 6 pages including references and includes 3 figures. The supplementary information is of 9 pages and includes 6 figures. The journal link to the published article is also provided