Geometric Decoherence Time in Lindbladian Dynamics
Summary
arXiv:2606.02743v1 Announce Type: new Abstract: The onset of decoherence in open many-body systems lacks a dynamical timescale grounded in the loss of bipartite entanglement. Here, we introduce the $geometric$ $decoherence$ $time$, defined as the earliest moment the monotone relation between logarithmic negativity and R\'{e}nyi-$\tfrac{1}{2}$ entropy -- exactly equal across any bipartition for pure states -- breaks down under open-system evolution, signaling entropy growth without accompanying entanglement growth. We establish this criterion in both single-particle Gaussian dynamics and many-body Lindbladian evolution.
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Key Facts
- SectorQuantum
- Market—
- ImpactLow (42/100)
- SignalResearch