Upcoming Talks

If we augment part of a classical network with quantum capabilities, what can be done better than in the purely classical setting? In this talk, we will see that localizing transmission loss change in optical networks provides one answer to this question. The ability to localize transmission loss change in optical networks is crucial for maintaining network reliability, performance and security. Quantum probes, implemented by sending blocks of n coherent-state pulses augmented with continuous-variable (CV) squeezing (n = 1) or weak temporal-mode entanglement (n > 1) over a lossy channel to a receiver with homodyne detection capabilities, are known to be more sensitive than their quasi-classical counterparts in detecting a sudden increase in channel loss. Assuming a subset of network nodes can send and receive such probes, we propose a scheme that combines these quantum probes with classical frameworks of Boolean network tomography and Quickest Change Detection. I will show how this combination of techniques leads to a quantifiable asymptotic quantum speedup for localizing transmission drop. Finally, I will speculate on possible future directions where similar techniques could be fruitful. Joint work with Yu-Zhen Janice Chen, Prithwish Basu, and Don Towsley.

Yufei Zheng is a postdoc at UMass Amherst, working with Don Towsley. She completed her PhD in the Department of Computer Science at Princeton University, where she was advised by Jennifer Rexford. Prior to that, she spent some time in Technion working on enumerative combinatorics. Her recent research has focused on quantum-augmented networks, and she is broadly interested in finding quantum speedups wherever they may arise.

TBD

1st year Grad student in the ECE Department.