Global zero-excitation state preparation through subsystem cooling

arXiv:2609.23960 · quant-ph, math-ph, math.MP · Submitted 2026-09-21 · Read on arXiv

quant-ph, math-ph, math.MP

Submitted: 2026-09-21

Updated: 2026-09-21

Comments: 12 pages, 3 figures

Code: https://github.com/KerstinBeer/subsystem-cooling

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Effective Hamiltonian — 4× in this paper · explained in 2 episodes
• Hilbert Space — 4× in this paper · explained in 2 episodes
• Degeneracy — 2× in this paper · explained in 4 episodes
• Entanglement — 2× in this paper · explained in 4 episodes
• Spectral Gap — 2× in this paper · explained in 5 episodes
• Trace — 2× in this paper · explained in 2 episodes
• Hubbard Model — 1× in this paper · explained in 5 episodes

Sources

• Dissipative ground-state preparation of a quantum spin chain on a trapped-ion quantum computer
• Quasiparticle cooling algorithms for quantum many-body state preparation
• Single-ancilla ground state preparation via Lindbladians
• Simple and efficient end-to-end quantum thermal and ground state preparation
• Spectral Gap Bounds for Quantum Markov Semigroups via Correlation Decay
• Zero forcing, linear and quantum controllability for systems evolving on networks

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