Explore the challenges and potential of quantum networking in this 33-minute lecture by Don Towsley from UMass - Amherst. Delve into elementary quantum concepts, including qubits, superposition, and measurement. Examine long-distance entanglement and quantum networks, focusing on repeaters and end-to-end entanglements. Analyze the challenges in performance and control of quantum entanglement networks, discussing state information and path diversity. Investigate grid network phases and rate dependence on probability. Compare routing entanglement flows with global versus local state information, and consider multi-flow routing. Conclude with open questions and future directions for quantum internet research, while celebrating Jean's retirement.
Overview
Syllabus
Intro
Outline
Elementary quantum 101
Quantum bits qubit-two-state quantum-mechanical system example: photon polarization
Superposition of states
Measurement
Two qubits
Long distance entanglement
Quantum Networks
Repeaters, e2e entanglements
Quantum entanglement network
Challenges: performance, control
State information, Path diversity
Grid Network - Phase 2
Grid Network - Phase 1
Rate dependence on p
When every repeater has global state information
Routing entanglement flows with local state information
Multi-flow routing
Open Questions
Conclusions
Happy retirement, Jean
Taught by
Simons Institute
