Coherent Quantum Interconnection between On-Demand Quantum Dot Single Photons and a Resonant Atomic Quantum Memory

• DOI: 10.48550/arxiv.2301.10326
• Publication Date: 2023-01-01
• Authors: Cui, Guo-Dong; Schweickert, Lucas; Jöns, Klaus D.; Namazi, Mehdi; Lettner, Thomas; Zeuner, Katharina D.; Montaña, Lara Sca...; da Silva, Saimon ...; Reindl, Marcus; Huang, Huiying; Trotta, Rinaldo; Rastelli, Armando; Zwiller, Val; Figueroa, Eden
• Keywords: Quantum Physics; FOS: Physical sciences; Quantum Physics (quant-ph)

Long-range quantum communication requires the development of in-out light-matter interfaces to achieve a quantum advantage in entanglement distribution. Ideally, these quantum interconnections should be as fast as possible to achieve high-rate entangled qubits distribution. Here, we demonstrate the coherent quanta exchange between single photons generated on-demand from a GaAs quantum dot and atomic ensemble in a $^{87}$Rb vapor quantum memory. Through an open quantum system analysis, we demonstrate the mapping between the quantized electric field of photons and the coherence of the atomic ensemble. Our results play a pivotal role in understanding quantum light-matter interactions at the short time scales required to build fast hybrid quantum networks.<br/>arXiv admin note: text overlap with arXiv:1808.05921; v2: figure typo corrected<br/>