Research project
Federated Variational Quantum Linear Solver
Local quantum clients, coordinated by a classical server.
How can a pool of near-term quantum clients jointly solve a larger linear system while operating on local submatrices?
Approach
Use LCU decompositions of private submatrices on local NISQ clients, with a central classical server coordinating optimization parameters.
My contribution
- Developed the federated VQLS protocol.
- Implemented and evaluated the approach in PennyLane simulations.
Results
Local → collectiveQuantum clients with classical coordination
PennyLane simulations show that expanding the client pool supports larger linear systems than a single NISQ processor.