QVM: Quantum Gate Virtualization Machine
summary
QVM exposes a virtual circuit IR plus a compiler and runtime that split circuits into optimized fragments, schedule them across small QPUs, and classically reconstruct results; implementation in Qiskit prototype runs on IBM 7- and 27-qubit devices (Perth, Kolkata). Claim: circuits up to double the QPU qubit count execute with higher fidelity (4.7× average vs larger QPUs) and depths drop to ~40% of original. Cost tradeoff is exponential: virtualization induces a 6^K overhead in quantum runs and classical postprocessing.
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chapters (10)
- 0:00QVM and quantum challenges
- 2:50Gate virtualization concept
- 5:39Gate virtualization challenges
- 6:02QVM system overview
- 7:05QVM architecture and workflow
- 8:11Circuit cutter optimization
- 10:16Dependency reducer optimization
- 11:18Experimental results
- 12:45Conclusion and future work
- 13:27Q&A
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