research
A Blind Preparation Outruns the Slow Mode
A clean-chain state can accelerate relaxation in disordered quantum chains without knowing the sample or its disorder distribution.
Summary
A clean-chain state can accelerate relaxation in disordered quantum chains without knowing the sample or its disorder distribution.
The strong Mpemba effect normally requires designing an initial state that suppresses a system's slowest mode, but disorder makes that mode sample-specific. The authors derive a fixed preparation from the clean chain and show that it can begin farther from stationarity yet overtake a reference in typical dephased disordered XX chains. An exact inverse-generator identity connects residual overlap to the resistance profile, revealing separate conditions for diffusion and for the expected square-root decay of overlap. The work supplies preparation circuits and a density readout; its evidence is theoretical and finite-size computational, not an experimental speedup.
Why it matters
A clean-chain state can accelerate relaxation in disordered quantum chains without knowing the sample or its disorder distribution.
Limits and context
- The work supplies preparation circuits and a density readout; its evidence is theoretical and finite-size computational, not an experimental speedup.
Key claims
A clean-chain state can accelerate relaxation in disordered quantum chains without knowing the sample or its disorder distribution.
Qualification: The work supplies preparation circuits and a density readout; its evidence is theoretical and finite-size computational, not an experimental speedup.
Evidence: source-2026-11-08-012
Sources
- arXiv preprint 2611.08424, original v1arXiv · primary research
Corrections
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