AffiliationUniversity of Arizona, College of Optical Sciences
maximum weight scheduling
quantum continuous variables
MetadataShow full item record
CitationTillman, I., Vasantam, T., & Seshadreesan, K. P. (2022). A Continuous Variable Quantum Switch. Proceedings - 2022 IEEE International Conference on Quantum Computing and Engineering, QCE 2022, 365–371.
JournalProceedings - 2022 IEEE International Conference on Quantum Computing and Engineering, QCE 2022
Rights© 2022 IEEE.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at email@example.com.
AbstractThe continuous quadratures of a single mode of the light field present a promising avenue to encode quantum information. By virtue of the infinite dimensionality of the associated Hilbert space, quantum states of these continuous variables (CV) can enable higher communication rates compared to single photon-based qubit encodings. Quantum repeater protocols that are essential to extend the range of quantum communications at enhanced rates over direct transmission have also been recently proposed for CV quantum encodings. Here we present a quantum repeating switch for CV quantum encodings that caters to multiple communication flows. The architecture of the switch is based on quantum light sources, detectors, memories, and switching fabric, and the routing protocol is based on a Max-Weight scheduling policy that is throughput optimal. We present numerical results on an achievable bipartite entanglement request rate region for multiple CV entanglement flows that can be stably supported through the switch. We elucidate our results with the help of exemplary 3-flow networks.
VersionFinal accepted manuscript