The realization of practical quantum networks is highly sought after for the advancement of secure communications, distributed quantum computing, and quantum-enhanced sensing. Previous work on analytical models of repeaterless quantum networks emphasizes the importance of optimized routing and spectrum allocation of broadband Einstein-Podolsky-Rosen- (EPR) pair distribution in the network. These networks consist of a quantum transmitter, transmission links, and quantum receivers. The quantum transmitter, or source node, generates a broadband distribution of heralded EPR pairs that are distributed throughout the network via the transmission links. The quantum receivers, or consumer nodes, consist of mode converters that convert the frequency and bandwidth of the entangled photon pairs to be compatible with Duan-Kimble quantum memories. This work aims to develop a table-top reconfigurable quantum network. Initial stages of this work will integrate free-space, fiber-based and photonic integrated circuits (PICs), with long-term goals to fully integrate the network into scalable PICs. Current advancements in nonlinear and quantum photonic devices offer many approaches to this goal including PIC-based entangled photon pair generators, mode converters, and reconfigurable wavelength routing mechanisms. The development of scalable repeaterless quantum networks will allow direct comparison to the current analytical models and their routing and spectrum allocation strategies. This work will directly aid in the optimization of scalable quantum networks for distributed quantum computing and secure communications, and can feed into the development of long-haul repeater-based quantum networks.
Experimental demonstration of scalable and reconfigurable repeaterless quantum networks
By Shelbi Jenkins, University of Arizona, College of Optical Sciences
- Event Type: Seminar
- Date and Time: 11/21/2024 1:00 pm - 11/21/2024 2:00 pm
- Location: Willamette 240 - OMQ Conference Room
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