Realizing an entanglement-based multi-user quantum network with integrated photonics

• URL: http://arxiv.org/abs/2206.09785v2
• Date: Tue, 6 Sep 2022 08:02:18 GMT
• Title: Realizing an entanglement-based multi-user quantum network with integrated photonics
• Authors: Wenjun Wen, Zhiyu Chen, Liangliang Lu, Wenhan Yan, Wenyi Xue, Peiyu Zhang, Yanqing Lu, Shining Zhu, Xiao-song Ma
• Abstract summary: Quantum network facilitates the secure transmission of information between different users. We develop an energy-time entanglement-based dense wavelength division multiplexed network based on an integrated silicon nitride micro-ring resonator.
• Score: 7.023079683052248
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum network facilitates the secure transmission of information between different users. Establishing communication links among multiple users in a scalable and efficient way is important for realizing a large-scale quantum network. Here we develop an energy-time entanglement-based dense wavelength division multiplexed network based on an integrated silicon nitride micro-ring resonator, which offers a wide frequency span (covering at least the entire C-band) and narrow bandwidth modes (~ 650MHz). Six pairs of photons are selected to form a fully and simultaneously connected four-user quantum network. The observed quantum interference visibilities are well above the classical limits among all users. Each pair of users perform the BBM92 protocol for quantum key distribution. Our results pave the way for realizing large-scale quantum networks with integrated photonic architecture.

Related papers

• A quantum-network register assembled with optical tweezers in an optical cavity [0.0]
  Quantum computation and quantum communication are expected to provide users with capabilities inaccessible by classical physics. One solution is to develop a quantum network consisting of small-scale quantum registers containing computation qubits. We report on a register that uses both optical tweezers and optical lattices to deterministically assemble a two-dimensional array of atoms in an optical cavity.
  arXiv  Detail & Related papers  (2024-07-12T09:20:57Z)
• Guarantees on the structure of experimental quantum networks [109.08741987555818]
  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)
• Simulation of Entanglement Generation between Absorptive Quantum Memories [56.24769206561207]
  We use the open-source Simulator of QUantum Network Communication (SeQUeNCe), developed by our team, to simulate entanglement generation between two atomic frequency comb (AFC) absorptive quantum memories. We realize the representation of photonic quantum states within truncated Fock spaces in SeQUeNCe. We observe varying fidelity with SPDC source mean photon number, and varying entanglement generation rate with both mean photon number and memory mode number.
  arXiv  Detail & Related papers  (2022-12-17T05:51:17Z)
• Multiplexed telecom-band quantum networking with atom arrays in optical cavities [0.3499870393443268]
  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.
  arXiv  Detail & Related papers  (2021-07-09T15:05:57Z)
• Distributing Multipartite Entanglement over Noisy Quantum Networks [0.0]
  A quantum internet aims at harnessing networked quantum technologies, namely by distributing bipartite entanglement between distant nodes. We present an algorithm for generating multipartite entanglement between different nodes of a quantum network with noisy quantum repeaters and imperfect quantum memories.
  arXiv  Detail & Related papers  (2021-03-26T22:48:05Z)
• 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)
• Experimental Quantum Generative Adversarial Networks for Image Generation [93.06926114985761]
  We experimentally achieve the learning and generation of real-world hand-written digit images on a superconducting quantum processor. Our work provides guidance for developing advanced quantum generative models on near-term quantum devices.
  arXiv  Detail & Related papers  (2020-10-13T06:57:17Z)
• 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)
• Frequency-Domain Quantum Interference with Correlated Photons from an Integrated Microresonator [96.25398432840109]
  We report frequency-domain Hong-Ou-Mandel interference with spectrally distinct photons generated from a chip-based microresonator. Our work establishes four-wave mixing as a tool for selective high-fidelity two-photon operations in the frequency domain.
  arXiv  Detail & Related papers  (2020-03-14T01:48:39Z)
• 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.