Machine-Learning-Enhanced Quantum Optical Storage in Solids

• URL: http://arxiv.org/abs/2404.04200v1
• Date: Fri, 5 Apr 2024 16:14:54 GMT
• Title: Machine-Learning-Enhanced Quantum Optical Storage in Solids
• Authors: Yisheng Lei, Haechan An, Zongfeng Li, Mahdi Hosseini,
• Abstract summary: Solid-state quantum memories can provide broadband storage, but they primarily suffer from low storage efficiency. We use passive optimization and machine learning techniques to demonstrate nearly a 6-fold enhancement in quantum memory efficiency.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Quantum memory devices with high storage efficiency and bandwidth are essential elements for future quantum networks. Solid-state quantum memories can provide broadband storage, but they primarily suffer from low storage efficiency. We use passive optimization and machine learning techniques to demonstrate nearly a 6-fold enhancement in quantum memory efficiency. In this regime, we demonstrate coherent and single-photon-level storage with a high signal-to-noise ratio. The optimization technique presented here can be applied to most solid-state quantum memories to significantly improve the storage efficiency without compromising the memory bandwidth.

Related papers

• Progress towards efficient 4-level photon echo memories [0.0]
  We show an efficient (up to 80%) spin-storage quantum memory in Er:YSO. We demonstrate the storage of 70 temporal modes, with a write time of 150 us, and a storage time of 25 us. Such a device would have applications in quantum networking and measurement-based quantum computing.
  arXiv  Detail & Related papers  (2024-09-19T06:49:24Z)
• High-efficiency, high-speed, and low-noise photonic quantum memory [0.0]
  We present a demonstration of simultaneous high-efficiency, high-speed, and low-noise operation of a photonic quantum memory. We achieve greater than 95% storage efficiency and 26% total efficiency of 880 GHz bandwidth photons, with $mathcalO(10-5)$ noise photons per retrieved pulse.
  arXiv  Detail & Related papers  (2023-09-02T15:34:35Z)
• Efficient cavity-assisted storage of photonic qubits in a solid-state quantum memory [37.69303106863453]
  We report on the high-efficiency storage and retrieval of weak coherent optical pulses and photonic qubits in a cavity solid-state quantum memory. We store weak coherent pulses at the single photon level with up to 62% efficiency for a pre-determined storage time of 2 $mu$s. We then store weak coherent time-bin qubits with (51+-2)% efficiency and a measurement-device limited fidelity over (94.8+-1.4)% for the retrieved qubits.
  arXiv  Detail & Related papers  (2023-07-07T10:55:09Z)
• Entanglement Distribution in Quantum Repeater with Purification and Optimized Buffer Time [53.56179714852967]
  We explore entanglement distribution using quantum repeaters with optimized buffer time. We observe that increasing the number of memories on end nodes leads to a higher entanglement distribution rate per memory. When imperfect operations are considered, however, we make the surprising observation that the per-memory entanglement rate decreases with increasing number of memories.
  arXiv  Detail & Related papers  (2023-05-23T23:23:34Z)
• Quantum Optical Memory for Entanglement Distribution [52.77024349608834]
  Entanglement of quantum states over long distances can empower quantum computing, quantum communications, and quantum sensing. Over the past two decades, quantum optical memories with high fidelity, high efficiencies, long storage times, and promising multiplexing capabilities have been developed.
  arXiv  Detail & Related papers  (2023-04-19T03:18:51Z)
• Broadband Quantum Memory in Atomic Ensembles [4.893152131023541]
  We review a central challenge to achieving broadband quantum memory in atomic ensembles. We also review the theory underlying atomic ensemble quantum memory. We examine the state-of-the-art performance of broadband atomic ensemble quantum memories.
  arXiv  Detail & Related papers  (2023-01-20T19:14:56Z)
• High-performance cavity-enhanced quantum memory with warm atomic cell [1.0539847330971805]
  We report a high-performance cavity-enhanced electromagnetically-induced-transparency memory with warm atomic cell. It has been experimentally demonstrated that the average fidelities for a set of input coherent states with different phases and amplitudes within a Gaussian distribution have exceeded the classical benchmark fidelities.
  arXiv  Detail & Related papers  (2022-06-17T01:59:26Z)
• Field-deployable Quantum Memory for Quantum Networking [62.72060057360206]
  We present a quantum memory engineered to meet real-world deployment and scaling challenges. The memory technology utilizes a warm rubidium vapor as the storage medium, and operates at room temperature. We demonstrate performance specifications of high-fidelity retrieval (95%) and low operation error $(10-2)$ at a storage time of 160 $mu s$ for single-photon level quantum memory operations.
  arXiv  Detail & Related papers  (2022-05-26T00:33:13Z)
• Storage and analysis of light-matter entanglement in a fibre-integrated system [48.7576911714538]
  We demonstrate a fiber-integrated quantum memory entangled with a photon at telecommunication wavelength. The storage device is based on a fiber-pigtailed laser written waveguide in a rare-earth doped solid and allows an all-fiber stable adressing of the memory. Our results feature orders of magnitude advances in terms of storage time and efficiency for integrated storage of light-matter entanglement, and constitute a significant step forward towards quantum networks using integrated devices.
  arXiv  Detail & Related papers  (2022-01-10T14:28:04Z)
• Entanglement Rate Optimization in Heterogeneous Quantum Communication Networks [79.8886946157912]
  Quantum communication networks are emerging as a promising technology that could constitute a key building block in future communication networks in the 6G era and beyond. Recent advances led to the deployment of small- and large-scale quantum communication networks with real quantum hardware. In quantum networks, entanglement is a key resource that allows for data transmission between different nodes.
  arXiv  Detail & Related papers  (2021-05-30T11:34:23Z)
• A Frequency-Multiplexed Coherent Electro-Optic Memory in Rare Earth Doped Nanoparticles [94.37521840642141]
  Quantum memories for light are essential components in quantum technologies like long-distance quantum communication and distributed quantum computing. Recent studies have shown that long optical and spin coherence lifetimes can be observed in rare earth doped nanoparticles. We report on coherent light storage in Eu$3+$:Y$$O$_3$ nanoparticles using the Stark Echo Modulation Memory (SEMM) quantum protocol.
  arXiv  Detail & Related papers  (2020-06-17T13:25:54Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.