Certifying high-dimensional quantum channels

• URL: http://arxiv.org/abs/2408.15880v1
• Date: Wed, 28 Aug 2024 15:51:06 GMT
• Title: Certifying high-dimensional quantum channels
• Authors: Sophie Engineer, Suraj Goel, Sophie Egelhaaf, Will McCutcheon, Vatshal Srivastav, Saroch Leedumrongwatthanakun, Sabine Wollmann, Ben Jones, Thomas Cope, Nicolas Brunner, Roope Uola, Mehul Malik,
• Abstract summary: It is crucial to certify that a given quantum channel can reliably transmit high-dimensional quantum information. We first present a notion of dimensionality of quantum channels, and develop efficient certification methods for this quantity. In turn we apply these methods to a photonic experiment and certify dimensionalities up to 59 for a commercial graded-index multi-mode optical fiber.
• Score: 0.07244278438745265
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The use of high-dimensional systems for quantum communication opens interesting perspectives, such as increased information capacity and noise resilience. In this context, it is crucial to certify that a given quantum channel can reliably transmit high-dimensional quantum information. Here we develop efficient methods for the characterization of high-dimensional quantum channels. We first present a notion of dimensionality of quantum channels, and develop efficient certification methods for this quantity. We consider a simple prepare-and-measure setup, and provide witnesses for both a fully and a partially trusted scenario. In turn we apply these methods to a photonic experiment and certify dimensionalities up to 59 for a commercial graded-index multi-mode optical fiber. Moreover, we present extensive numerical simulations of the experiment, providing an accurate noise model for the fiber and exploring the potential of more sophisticated witnesses. Our work demonstrates the efficient characterization of high-dimensional quantum channels, a key ingredient for future quantum communication technologies.

Related papers

• 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)
• Empowering high-dimensional quantum computing by traversing the dual bosonic ladder [0.12045539806824922]
  We present a robust, hardware-efficient, and experimental approach for operating multidimensional solid-state systems using Raman-assisted two-photon interactions. Our work illuminates the quantum electrodynamics of strongly driven multi-qudit systems and provides the experimental foundation for the future development of high-dimensional quantum applications.
  arXiv  Detail & Related papers  (2023-12-29T18:49:26Z)
• Experimental certification of contextuality, coherence and dimension in a programmable universal photonic processor [0.0]
  We experimentally certify coherence witnesses tailored for quantum systems of increasing dimension. In particular, we show the effectiveness of the proposed coherence and dimension witnesses for qudits of dimensions up to 5.
  arXiv  Detail & Related papers  (2023-11-06T16:59:00Z)
• Experimental high-dimensional entanglement certification and quantum steering with time-energy measurements [4.573407244528267]
  Time-frequency qudit states offer significantly increased quantum capacities while keeping the number of photons constant. We develop a new scheme and experimentally demonstrate the certification of 24-dimensional entanglement and a 9-dimensional quantum steering. Our highly scalable scheme is based on commercial telecommunication optical fiber components and recently developed low-jitter high-efficiency single-photon detectors.
  arXiv  Detail & Related papers  (2023-10-31T17:55:36Z)
• Quantum Semantic Communications for Resource-Efficient Quantum Networking [52.3355619190963]
  This letter proposes a novel quantum semantic communications (QSC) framework exploiting advancements in quantum machine learning and quantum semantic representations. The proposed framework achieves approximately 50-75% reduction in quantum communication resources needed, while achieving a higher quantum semantic fidelity.
  arXiv  Detail & Related papers  (2022-05-05T03:49:19Z)
• 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)
• On exploring the potential of quantum auto-encoder for learning quantum systems [60.909817434753315]
  We devise three effective QAE-based learning protocols to address three classically computational hard learning problems. Our work sheds new light on developing advanced quantum learning algorithms to accomplish hard quantum physics and quantum information processing tasks.
  arXiv  Detail & Related papers  (2021-06-29T14:01:40Z)
• A proposal for practical multidimensional quantum networks [0.0]
  High-dimensional quantum systems (qudits) present higher photon information efficiency and robustness to noise. Their use in quantum networks present experimental challenges due to the impractical resources required in high-dimensional quantum repeaters. Our work significantly simplifies the implementation of high-dimensional quantum networks, fostering their development with current technology.
  arXiv  Detail & Related papers  (2021-03-16T17:15:58Z)
• 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)
• 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)

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.