DOS-QPE introduces quantum phase estimation on purified probes to extract density-of-states features for signed graphs, predicting structural frustration with 0.4 mean error while reducing quantum shots by 100x versus trace sampling.

#QuantumMachineLearning #SpectralAnalysis #Research

Determines the trace-class spectrum of irreducible Gaussian quantum Markov semigroups under stable, unstable, and critical drift regimes, revealing spectral structures beyond polynomial eigenvalue families.

#QuantumSystems #SpectralAnalysis #Research