Entanglement-Assisted Communication and Networking in a Contested Environment
Abstract
Statement of objectives The project investigates the theory for entanglement-assisted communication (EACOMM) and networking (EANet) in a highly contested environment with a large amount of loss and background noise. We will show that pre-shared entanglement gives rise to an appreciable quantum advantage in communication rate: two or more communication parties can take advantage of pre-shared entanglement, in conjunction with a quantum receiver, to beat the ultimate channel capacity achievable by transmitter and receiver without entanglement, as quantified by its Holevo information. The first goal in this project is to understand the ultimate limits of entanglementÕs assistance in EACOMM and EANet, in lossy and noisy contested wireless communication. For EACOMM, the capacity advantage will be evaluated. For EANet, bounds on the capacities and advantage will be obtained. The second goal in this project is to explore the encoding and decoding strategies that will benefit from having pre-shared entanglement in both EACOMM and EANet. The consumption of entanglement for each round of communication will be analyzed. The third goal in this project is to provide structured experimental designs for the encoding and decoding strategies and evaluate the performance with practical parameters of equipment. This assessment will provide guidance towards the realization of entanglement-assisted communication in a contested environment. Methodology In a contested environment, entanglement can easily be destroyed by noise and loss in the quantum channel. While various quantum protocols fails, surprisingly, the quantum illumination protocol has demonstrated quantum advantage in sensing applications despite entanglement being totally destroyed. This project will build upon quantum illuminationÕs success and enable quantum advantage in network communication. In particular, continuous-variable entanglement between bosonic modes, such as a two-mode squeezed vacuum state and its multipartite generalization, will be shared by network users. Phase modulation will be utilized in the information encoding process. Adaptive decoders based on the optical parametric amplifier and sum-frequency generation process will be optimized and re-configured for communication purpose. Theory of multipartite entanglement will be utilized to analyze the information rate of the communication protocols. Significance Our project will have impact both in fundamental science and practical engineering advancement. Quantum entanglement has been the key feature in quantum physics that promises to enhance the performance of various applications. The project will not only deepen our understanding of quantum entanglementÕs role in communication, but will also provide designs for novel and revolutionary network communication protocols and hardware systems that enable enhanced reliable communication in contested noisy channels. The expected outcome will pave the way towards entanglement-assisted reliable wireless and radio-frequency communication, in both point-to-point and network communication tasks, with particular applications in processing, exploitation, and dissemination (PED) and the mitigation of anti-access/area denial (A2/AD) technologies.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 19, 2019
- Source ID
- W911NF1910418
Entities
People
- Quntao Zhuang
Organizations
- Army Contracting Command
- United States Army
- University of Arizona