research
The Qubits Remember How Long Ago They Reset
On IBM hardware, two entropy diagnostics tracked noiseless predictions while concurrence was suppressed by noise.
Summary
On IBM hardware, two entropy diagnostics tracked noiseless predictions while concurrence was suppressed by noise.
In stochastic-reset steady states, the difference between trajectory-resolved and averaged entanglement entropy equals the information a subsystem retains about time since reset. Hardware measurements followed entropy predictions without fitted parameters; a one-parameter depolarizing model captured most concurrence suppression.
Why it matters
On IBM hardware, two entropy diagnostics tracked noiseless predictions while concurrence was suppressed by noise.
Limits and context
No additional limitation was separately recorded.
Key claims
On IBM hardware, two entropy diagnostics tracked noiseless predictions while concurrence was suppressed by noise.
Evidence: source-2026-10-30-018
Sources
- arXiv preprint 2610.40638, original v1arXiv · primary research
Corrections
No corrections have been recorded for this story.