Particle-Number-Preserving Quantum Signal Processing for Thermal Properties: Canonical-Ensemble Estimation and Grand-Canonical Reconstruction
quant-ph, cs.NA, math.NA
Submitted: 2026-10-07
Updated: 2026-10-07
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Sources
- Quantum Thermal State Preparation
- Optimal statistical ensembles for quantum thermal state preparation within the quantum singular value transformation framework
- Low-gate-count block encodings for second-quantized fermionic Hamiltonians
- Convergence of the Cumulant Expansion and Polynomial-Time Algorithm for Weakly Interacting Fermions
- Quantum singular value transformation without block encodings: Near-optimal complexity with minimal ancilla
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