International Workshop on Quantum Network Science
Abstract
Quantum mechanics enables fundamentally more powerful ways to encode, process and communicate information. With quantum computing and processing technologies maturing, it is imperative we understand what computational power quantum computers will afford when we network many of them. Small quantum processors connected via a quantum-information-capable, long-distance network will give rise to powerful distributed quantum computing in the relatively near term, will provide distributed entanglement across remote locations which will turn will enable distributed sensing for applications ranging from remote sensing, to gravimetry to astronomy. Quantum entanglement distribution over a network will also enable a suite of secure multiparty computing applications whose security is guaranteed by physics, rather than assuming limitations on the adversaryÕs computational capabilities as for current implementations. Despite the aforesaid promises of a quantum network, our knowledge of the mathematics behind the workings of a quantum network and its computational and distributed information processing capabilities are very limited. The goal of this workshop is to assemble a set of world class researchers with diverse yet complementary backgroundsÑspanning quantum information theory, network science, computer network architecture and protocols, and quantum sources and light-matter interactionsÑto brainstorm on the most pertinent and high-impact questions to develop the Òscience of quantum networksÓ. The topics to be covered are listed below. (1) Information-theoretic limits: on entanglement rates achievable simultaneously by multiple user pairs and user groups over an underlying quantum network. (2) Emergent behavior of large quantum networks: connectivity and percolation in a large quantum network, quantum information spread using local quantum actions in a network, quantum network science and its implications in quantum information theory, high-energy physics, condensed matter physics, quantum chemistry and other related fields where large quantum networks naturally occur. (3) Entanglement generation and manipulation: generating, manipulating and shaping global entanglement in a network via local quantum processing and classical communications; sources of entangled photons and multi-photon cluster states, scalable light-matter interactions to create networked qubits locally in a processor and globally in a distributed quantum network. (4) Mathematical tools: tensor networks, quantum network information theory, multi-site entanglement measures, characterization of entanglement for continuous-variable quantum systems, multi-site entanglement concentration and distillation (5) Quantum router protocols: design tradeoffs between genres of quantum repeater proposals, error correcting codes, requirements on quantum memories, all-photonic repeaters, requirements on classical communications, entanglement sources. (6) Distributed quantum computing: Algorithms for distributed quantum computing, the role of topology and connectivity of a network on its computational power, distributed fault tolerance theory.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 01, 2019
- Source ID
- W911NF1910141
Entities
People
- Saikat Guha
Organizations
- Army Contracting Command
- United States Army
- University of Arizona