Fourth-order ordering-sensitive Bargmann invariants supply the first universal pairwise criterion for set coherence, and applying it to all pairs yields a complete test for any finite family of states.
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The evolution speed of quantum measurement probabilities is bounded by their inherent quantum fluctuations, providing a correlation witness and a bound on transformation times to non-equilibrium states.
Introduces Bargmann scenarios and polytopes to fully characterize and organize the witnessing power of Bargmann invariants for coherence in sets of states.
Coherence enables anomalous work extraction in qubit gate dynamics via negative Kirkwood-Dirac quasiprobabilities, with a compositional relation connecting circuit-level work statistics to individual gates.
A quantum speed limit for observables is formulated from the trace-norm asymmetry of the time-dependent state, observable through weak measurements and bounding the quantum Fisher information for the conjugate parameter.
citing papers explorer
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A low order Bargmann invariant hierarchy for set coherence
Fourth-order ordering-sensitive Bargmann invariants supply the first universal pairwise criterion for set coherence, and applying it to all pairs yields a complete test for any finite family of states.
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Quantum speed limit for measurement probabilities
The evolution speed of quantum measurement probabilities is bounded by their inherent quantum fluctuations, providing a correlation witness and a bound on transformation times to non-equilibrium states.
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Bargmann Scenarios
Introduces Bargmann scenarios and polytopes to fully characterize and organize the witnessing power of Bargmann invariants for coherence in sets of states.
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Quantum Coherence and Anomalous Work Extraction in Qubit Gate Dynamics
Coherence enables anomalous work extraction in qubit gate dynamics via negative Kirkwood-Dirac quasiprobabilities, with a compositional relation connecting circuit-level work statistics to individual gates.
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Quantum speed limit for observables from quantum asymmetry
A quantum speed limit for observables is formulated from the trace-norm asymmetry of the time-dependent state, observable through weak measurements and bounding the quantum Fisher information for the conjugate parameter.