تقرير
A Single-Photon-compatible Telecom-C-Band Quantum Memory in a Hot Atomic Gas
| العنوان: | A Single-Photon-compatible Telecom-C-Band Quantum Memory in a Hot Atomic Gas |
|---|---|
| المؤلفون: | Thomas, S. E., Sagona-Stophel, S., Schofield, Z., Walmsley, I. A., Ledingham, P. M. |
| سنة النشر: | 2022 |
| المجموعة: | Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Physics - Atomic Physics |
| الوصف: | The efficient storage and on-demand retrieval of quantum optical states that are compatible with the telecommunications C-band is a requirement for future terrestrial-based quantum optical networking. Spectrum in the C-band minimises optical fiber-propagation losses, and broad optical bandwidth facilitates high-speed networking protocols. Here we report on a telecommunication wavelength and bandwidth compatible quantum memory. Using the Off-Resonant Cascaded Absorption protocol in hot $^{87}$Rb vapour, we demonstrate a total memory efficiency of $20.90(1)\,\%$ with a Doppler-limited storage time of $1.10(2)\,$ns. We characterise the memory performance with weak coherent states, demonstrating signal-to-noise ratios greater than unity for mean photon number inputs above $4.5(6)\times10^{-6}$ per pulse. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2211.04415 |
| رقم الأكسشن: | edsarx.2211.04415 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |