Entanglement distribution based on quantum walk in arbitrary quantum networks

• URL: http://arxiv.org/abs/2407.04338v1
• Date: Fri, 5 Jul 2024 08:26:41 GMT
• Title: Entanglement distribution based on quantum walk in arbitrary quantum networks
• Authors: Tianen Chen, Yun Shang, Chitong Chen, Heng Fan,
• Abstract summary: We develop a series of scheme for generating high-dimensional entangled states via quantum walks with multiple coins or single coin. We also give entanglement distribution schemes on arbitrary quantum networks according to the above theoretical framework. Our work can serve as a building block for constructing larger and more complex quantum networks.
• Score: 6.37705397840332
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In large-scale quantum networks, distributing the multi-particle entangled state among selected nodes is crucial for realizing long-distance and complicated quantum communication. Quantum repeaters provides an efficient method to generate entanglement between distant nodes. However, it is difficult to extend quantum repeater protocols to high-dimensional quantum states in existing experiments. Here we develop a series of scheme for generating high-dimensional entangled states via quantum walks with multiple coins or single coin by quantum repeaters, including $d$-dimensional Bell states, multi-particle high dimensional GHZ states etc.. Furthermore, we give entanglement distribution schemes on arbitrary quantum networks according to the above theoretical framework. As applications, we construct quantum fractal networks and multiparty quantum secret sharing protocols based on $d$-dimensional GHZ states. In the end, we give the experiment implementing of various 2-party or 3-party entanglement generation schemes based on repeaters. Our work can serve as a building block for constructing larger and more complex quantum networks.

Related papers

• 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)
• Enhanced quantum state transfer: Circumventing quantum chaotic behavior [35.74056021340496]
  We show how to transfer few-particle quantum states in a two-dimensional quantum network. Our approach paves the way to short-distance quantum communication for connecting distributed quantum processors or registers.
  arXiv  Detail & Related papers  (2024-02-01T19:00:03Z)
• A vertical gate-defined double quantum dot in a strained germanium double quantum well [48.7576911714538]
  Gate-defined quantum dots in silicon-germanium heterostructures have become a compelling platform for quantum computation and simulation. We demonstrate the operation of a gate-defined vertical double quantum dot in a strained germanium double quantum well. We discuss challenges and opportunities and outline potential applications in quantum computing and quantum simulation.
  arXiv  Detail & Related papers  (2023-05-23T13:42:36Z)
• 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)
• Genuinely Multipartite Entanglement vias Shallow Quantum Circuits [0.0]
  We prove any genuinely multipartite entanglement on finite-dimensional spaces can be generated by using 2-layer shallow quantum circuit. We propose a semi-device-independent entanglement model depending on the local connection ability. Results show new insights for the multipartite entanglement, quantum network, and measurement-based quantum computation.
  arXiv  Detail & Related papers  (2022-04-20T07:41:30Z)
• Efficient Bipartite Entanglement Detection Scheme with a Quantum Adversarial Solver [89.80359585967642]
  Proposal reformulates the bipartite entanglement detection as a two-player zero-sum game completed by parameterized quantum circuits. We experimentally implement our protocol on a linear optical network and exhibit its effectiveness to accomplish the bipartite entanglement detection for 5-qubit quantum pure states and 2-qubit quantum mixed states.
  arXiv  Detail & Related papers  (2022-03-15T09:46:45Z)
• Towards real-world quantum networks: a review [3.454055792111304]
  Quantum networks play an extremely important role in quantum information science. One of the key challenges for implementing a quantum network is to distribute entangled flying qubits to spatially separated nodes. Dedicated efforts around the world for more than twenty years have resulted in both major theoretical and experimental progress towards entangling quantum nodes.
  arXiv  Detail & Related papers  (2022-01-13T05:53:13Z)
• Efficient criteria of quantumness for a large system of qubits [58.720142291102135]
  We discuss the dimensionless combinations of basic parameters of large, partially quantum coherent systems. Based on analytical and numerical calculations, we suggest one such number for a system of qubits undergoing adiabatic evolution.
  arXiv  Detail & Related papers  (2021-08-30T23:50:05Z)
• Quantum Metrological Power of Continuous-Variable Quantum Networks [2.175441462022736]
  We show that most continuous-variable quantum networks provide entanglement to quantum states in distant nodes. We numerically demonstrate that even when CV quantum networks are composed of local beam splitters, the quantum enhancement can be attained when the depth is sufficiently large.
  arXiv  Detail & Related papers  (2021-07-29T18:01:03Z)
• Quantum Federated Learning with Quantum Data [87.49715898878858]
  Quantum machine learning (QML) has emerged as a promising field that leans on the developments in quantum computing to explore large complex machine learning problems. This paper proposes the first fully quantum federated learning framework that can operate over quantum data and, thus, share the learning of quantum circuit parameters in a decentralized manner.
  arXiv  Detail & Related papers  (2021-05-30T12:19:27Z)
• Entanglement transfer, accumulation and retrieval via quantum-walk-based qubit-qudit dynamics [50.591267188664666]
  Generation and control of quantum correlations in high-dimensional systems is a major challenge in the present landscape of quantum technologies. We propose a protocol that is able to attain entangled states of $d$-dimensional systems through a quantum-walk-based it transfer & accumulate mechanism. In particular, we illustrate a possible photonic implementation where the information is encoded in the orbital angular momentum and polarization degrees of freedom of single photons.
  arXiv  Detail & Related papers  (2020-10-14T14:33:34Z)

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.