I work at the intersection of quantum information, networking, and physics. The goal that ties it together: making quantum technologies — especially quantum networks — practical, efficient, and robust. Our work spans theory, algorithms, and the device physics underneath.

Quantum networking and the quantum internet. Entanglement is the fuel of a quantum network, but it's fragile and hard to distribute over distance. We design quantum repeaters and switches, study how to route and distribute entanglement across network topologies, and analyze the fundamental rates these networks can achieve. Recent work spans all-photonic repeaters, continuous-variable repeater architectures, and the capacity limits of quantum switches.

Control and optimization of quantum networks. A working network needs more than good hardware — it needs smart control. We bring tools from optimization, dynamic programming, and reinforcement learning to problems like entanglement distillation policies, link-layer scheduling, and network operation, so that quantum networks make the best use of scarce, noisy resources.

Distributed and fault-tolerant quantum computing. Quantum computers will likely scale by networking many modules together. We study the architectures and entanglement overheads of distributed fault-tolerant quantum computation, including how quantum error-correcting codes can be realized across networked modules.

Quantum sensing and metrology. Quantum resources let us measure beyond classical limits. We develop quantum sensing protocols — including variational and learning-based approaches — for tasks like magnetometry and structured parameter estimation, connecting fundamental measurement theory to real sensing problems.

Foundations: quantum information theory. Underlying all of this is the mathematics of quantum information — entanglement measures, channel capacities, and the limits of communication and key distribution. This theory grounds what's achievable in networking and sensing alike.

Our work is supported by the DOE (including an Early Career Award), the NSF, Cisco, the Pittsburgh Quantum Institute, and other sponsors, and is carried out with collaborators at Pitt, CMU, and beyond.