For N-qubit complete charging from all-down to all-up under time-independent Hamiltonians, the maximum QSL-normalized rate with entanglement depth ≤k is exactly 1/sqrt(ceil(N/k)), saturated by balanced cluster-flip evolutions and enabling certification of genuine N-partite entanglement for rates >1/
Quantum entanglement
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A coherent energy deficit in two-qubit states equals the square concurrence, establishing an energetic bound on entanglement that splits into quantum and classical parts for mixed states.
In this global-measurement Ising protocol the apparent measurement-induced transition at finite τ_c for L≈26-28 recedes to τ_c=0 in the large-L limit with scaling τ_c∼1/√L.
citing papers explorer
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Exact Entanglement-Depth Speed Frontier for Complete Quantum Charging
For N-qubit complete charging from all-down to all-up under time-independent Hamiltonians, the maximum QSL-normalized rate with entanglement depth ≤k is exactly 1/sqrt(ceil(N/k)), saturated by balanced cluster-flip evolutions and enabling certification of genuine N-partite entanglement for rates >1/
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An Energetic Constraint for Qubit-Qubit Entanglement
A coherent energy deficit in two-qubit states equals the square concurrence, establishing an energetic bound on entanglement that splits into quantum and classical parts for mixed states.
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Disappearance of measurement-induced phase transition in a quantum spin system for large sizes
In this global-measurement Ising protocol the apparent measurement-induced transition at finite τ_c for L≈26-28 recedes to τ_c=0 in the large-L limit with scaling τ_c∼1/√L.