A quantum-instrument framework shows that nonlocality sharing is limited by Kraus-structure-dependent back-action, enabling unbounded unilateral sharing across many observers and some bilateral sharing.
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Post-selected von Neumann measurements enhance quadrature squeezing, Wigner negativity, bipartite correlations, and phase sensitivity in entangled coherent states compared to standard metrology.
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Unified Framework for Quantum Resource Recycling via Instrument-Dependent Back-action
A quantum-instrument framework shows that nonlocality sharing is limited by Kraus-structure-dependent back-action, enabling unbounded unilateral sharing across many observers and some bilateral sharing.
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Reshaping nonclassical properties and metrological performance of entangled coherent states via post-selected von Neumann measurements
Post-selected von Neumann measurements enhance quadrature squeezing, Wigner negativity, bipartite correlations, and phase sensitivity in entangled coherent states compared to standard metrology.