Quantum Application Network Testbed for Novel Entanglement Technology
About the Project
Funded by the Advanced Scientific Computing Research (ASCR) division of the U.S. Department of Energy’s Office of Science, the Quantum Application Network Testbed for Novel Entanglement Technology (QUANT-NET) project brings together world-leading experts from Lawrence Berkeley National Laboratory (Berkeley Lab), University of California, Berkeley (UC Berkeley), the California Institute of Technology, and the University of Innsbruck to construct a testbed for quantum networking technologies.
The project’s goal is to establish a three-node distributed quantum computing network between Berkeley Lab and UC Berkeley, connected with an entanglement swapping substrate over optical fiber and managed by a quantum network protocol stack. On top of this entanglement swapping substrate, the research team will implement the most basic building block of distributed quantum computing and quantum repeater by teleporting a controlled-NOT gate between two far trapped-ion nodes.
Figure 1: The planned three-node distributed quantum computing network at Berkeley.
The QUANT-NET research efforts focus on three areas:
Repeater-friendly quantum-node technologies, which include researching and developing trapped-ion quantum node (i.e., quantum computer) and color-center based single-photon source;
Quantum frequency conversion of ion-compatible narrow-bandwidth photons at near-infrared 854 nm to the telecom C-band at 1550 nm;
Quantum network control, architecture and protocol stacks.
The project also explores heterogeneity and a path toward scalability by researching and developing silicon color center-based quantum technologies that can be used in future quantum repeater platforms.
Figure 2: Distributed quantum computing between remote trapped-ion nodes.