Multiplexed telecom-band quantum networking with atom arrays in optical cavities

• URL: http://arxiv.org/abs/2107.04477v1
• Date: Fri, 9 Jul 2021 15:05:57 GMT
• Title: Multiplexed telecom-band quantum networking with atom arrays in optical cavities
• Authors: William Huie, Shankar G. Menon, Hannes Bernien, and Jacob P. Covey
• Abstract summary: We propose a platform for quantum processors comprising neutral atom arrays with telecom-band photons in a multiplexed network architecture. The use of a large atom array instead of a single atom mitigates the deleterious effects of two-way communication and improves the entanglement rate between two nodes by nearly two orders of magnitude.
• Score: 0.3499870393443268
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The realization of a quantum network node of matter-based qubits compatible with telecom-band operation and large-scale quantum information processing is an outstanding challenge that has limited the potential of elementary quantum networks. We propose a platform for interfacing quantum processors comprising neutral atom arrays with telecom-band photons in a multiplexed network architecture. The use of a large atom array instead of a single atom mitigates the deleterious effects of two-way communication and improves the entanglement rate between two nodes by nearly two orders of magnitude. Further, this system simultaneously provides the ability to perform high-fidelity deterministic gates and readout within each node, opening the door to quantum repeater and purification protocols to enhance the length and fidelity of the network, respectively. Using intermediate nodes as quantum repeaters, we demonstrate the feasibility of entanglement distribution over approximately 1500 km based on realistic assumptions, providing a blueprint for a transcontinental network. Finally, we demonstrate that our platform can distribute approximately 25 Bell pairs over metropolitan distances, which could serve as the backbone of a distributed fault-tolerant quantum computer.

Related papers

• Realization of a crosstalk-free multi-ion node for long-distance quantum networking [0.0]
  Trapped atomic ions constitute one of the leading physical platforms for building the quantum repeater nodes. In a long-distance trapped-ion quantum network, it is essential to have crosstalk-free dual-type qubits. We report the first experimental implementation of a telecom-compatible and crosstalk-free quantum network node.
  arXiv  Detail & Related papers  (2024-05-22T05:58:37Z)
• Metropolitan-scale heralded entanglement of solid-state qubits [0.0]
  We report on heralded entanglement between two independently operated quantum network nodes separated by 10km. We minimize the effects of fiber photon loss by quantum frequency conversion of the qubit-stabilized photons to the telecom L-band. We demonstrate the delivery of a predefined entangled state on the nodes irrespective of the heralding detection pattern.
  arXiv  Detail & Related papers  (2024-04-04T18:00:01Z)
• Guarantees on the structure of experimental quantum networks [105.13377158844727]
  Quantum networks connect and supply a large number of nodes with multi-party quantum resources for secure communication, networked quantum computing and distributed sensing. As these networks grow in size, certification tools will be required to answer questions regarding their properties. We demonstrate a general method to guarantee that certain correlations cannot be generated in a given quantum network.
  arXiv  Detail & Related papers  (2024-03-04T19:00:00Z)
• A Quantum-Classical Collaborative Training Architecture Based on Quantum State Fidelity [50.387179833629254]
  We introduce a collaborative classical-quantum architecture called co-TenQu. Co-TenQu enhances a classical deep neural network by up to 41.72% in a fair setting. It outperforms other quantum-based methods by up to 1.9 times and achieves similar accuracy while utilizing 70.59% fewer qubits.
  arXiv  Detail & Related papers  (2024-02-23T14:09:41Z)
• Nonlocal photonic quantum gates over 7.0 km [5.545769900845797]
  We demonstrate nonlocal photonic quantum gates between two nodes spatially separated by 7.0 km. Results are a proof-of-principle demonstration of quantum gates over metropolitan-scale distances.
  arXiv  Detail & Related papers  (2023-07-28T15:49:00Z)
• Cavity-enhanced quantum network nodes [0.0]
  A future quantum network will consist of quantum processors that are connected by quantum channels. I will describe how optical resonators facilitate quantum network nodes.
  arXiv  Detail & Related papers  (2022-05-30T18:50:35Z)
• 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)
• An Evolutionary Pathway for the Quantum Internet Relying on Secure Classical Repeaters [64.48099252278821]
  We conceive quantum networks using secure classical repeaters combined with the quantum secure direct communication principle. In these networks, the ciphertext gleaned from a quantum-resistant algorithm is transmitted using QSDC along the nodes. We have presented the first experimental demonstration of a secure classical repeater based hybrid quantum network.
  arXiv  Detail & Related papers  (2022-02-08T03:24:06Z)
• Telecom-heralded entanglement between remote multimode solid-state quantum memories [55.41644538483948]
  Future quantum networks will enable the distribution of entanglement between distant locations and allow applications in quantum communication, quantum sensing and distributed quantum computation. Here we report the demonstration of heralded entanglement between two spatially separated quantum nodes, where the entanglement is stored in multimode solid-state quantum memories. We also show that the generated entanglement is robust against loss in the heralding path, and demonstrate temporally multiplexed operation, with 62 temporal modes.
  arXiv  Detail & Related papers  (2021-01-13T14:31:54Z)
• A Quantum Network Node with Crossed Optical Fibre Cavities [0.0]
  We develop a quantum network node that connects to two quantum channels. It functions as a passive, heralded and high-fidelity quantum memory. Our node is robust, fits naturally into larger fibre-based networks, can be scaled to more cavities, and thus provides clear perspectives for a quantum internet.
  arXiv  Detail & Related papers  (2020-04-19T12:17:17Z)
• Experimental quantum conference key agreement [55.41644538483948]
  Quantum networks will provide multi-node entanglement over long distances to enable secure communication on a global scale. Here we demonstrate quantum conference key agreement, a quantum communication protocol that exploits multi-partite entanglement. We distribute four-photon Greenberger-Horne-Zeilinger (GHZ) states generated by high-brightness, telecom photon-pair sources across up to 50 km of fibre.
  arXiv  Detail & Related papers  (2020-02-04T19:00:31Z)

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.