Broadband and Large-Multimode Quantum Optical Storage with Rare-Earth Ions in Solids
Abstract
Broadband quantum memory devices are essential elements for future quantum networks. Here we propose a broadband quantum memory scheme called Hole Anti-hole Grating Echo Memory (HAGEM) for rare-earth ions in solids, which can be implemented with most of the present rare-earth ions hosted in various types of solids. Using HAGEM, a quantum memory device with one billion temporal modes per second can be developed with current available technologies. To validate the memory protocol, we conducted some proof-of-concept experiments. We provide a Eu3+ molecular complex with special hyperfine level structures of which the hyperfine level separations are in a specific mathematical correlation that can be obtained by harnessing chemical engineering. Using the proposed memory protocol and material, we experimentally demonstrate a single-mode quantum optical storage efficiency of 14.9% and a memory bandwidth of 200MHz, which can easily be extended to a few GHz. In addition, a multi-mode storage of four temporal modes is achieved with a storage efficiency of 1.3%. Broadband & large-multimode quantum memory device with a long storage time enabled by HAGEM integrating with the current available entangled photon pair source and tunable delay lines, a quantum repeater network with an entanglement distribution rate on the order of 1kHz - 10kHz can be created with a communication distance around 100km. This will greatly facilitate the development of quantum networks in near future.
Related
- Plasmonic Quantum Nanocomposite-Modified Multimode–Multicore Fiber for Sensitive Optical Biosensing of Triclosan
- Stressing and probing with light: A thermo-optical investigation of soft solids
- Broadband nonvolatile optical switches enabled by artificial gauge field
- Loss-enabled bias-free broadband optical nonreciprocity
- Multifunctional Properties of Novel X2FeH5 Hydrides (X = Ca, Mg, Ba): A First-Principles Study of Hydrogen Storage, Electronic, Optical, and Mechanical Behavior
BibTeX
@misc{lei2026broadband,
title = {{Broadband and Large-Multimode Quantum Optical Storage with Rare-Earth Ions in Solids}},
author = {Yisheng Lei and Senthil Kumar Kuppusamy and Idris Tlemsani and Suma Al-Hunaishi and Pengrui Jiao and Olaf Fuhr and Mario Ruben and Philippe Goldner and Diana Serrano},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2609.28271},
eprint = {2609.28271},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.28271},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Broadband and Large-Multimode Quantum Optical Storage with Rare-Earth Ions in Solids
AU - Yisheng Lei
AU - Senthil Kumar Kuppusamy
AU - Idris Tlemsani
AU - Suma Al-Hunaishi
AU - Pengrui Jiao
AU - Olaf Fuhr
AU - Mario Ruben
AU - Philippe Goldner
AU - Diana Serrano
PY - 2026
DA - 2026/10/19
PB - arXiv
DO - 10.48550/arxiv.2609.28271
UR - https://arxiv.org/abs/2609.28271
AB - Broadband quantum memory devices are essential elements for future quantum networks. Here we propose a broadband quantum memory scheme called Hole Anti-hole Grating Echo Memory (HAGEM) for rare-earth ions in solids, which can be implemented with most of the present rare-earth ions hosted in various types of solids. Using HAGEM, a quantum memory device with one billion temporal modes per second can be developed with current available technologies. To validate the memory protocol, we conducted some proof-of-concept experiments. We provide a Eu^3+ molecular complex with special hyperfine level structures of which the hyperfine level separations are in a specific mathematical correlation that can be obtained by harnessing chemical engineering. Using the proposed memory protocol and material, we experimentally demonstrate a single-mode quantum optical storage efficiency of 14.9% and a memory bandwidth of 200MHz, which can easily be extended to a few GHz. In addition, a multi-mode storage of four temporal modes is achieved with a storage efficiency of 1.3%. Broadband & large-multimode quantum memory device with a long storage time enabled by HAGEM integrating with the current available entangled photon pair source and tunable delay lines, a quantum repeater network with an entanglement distribution rate on the order of 1kHz - 10kHz can be created with a communication distance around 100km. This will greatly facilitate the development of quantum networks in near future.
ER -