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·인용수 0
·2024
Maneuvering measurement-coherence into measurement-entanglement
Ho-Joon Kim, Soojoon Lee
arXiv (Cornell University)
초록

Quantum dynamics governs the transformation of static quantum resources, such as coherence and entanglement, in both quantum states and measurements. Prior studies have established that a quantum channel's state-cohering power can be converted into the state-entangling power without additional coherence. Here, we complete this coherence-to-entanglement paradigm by demonstrating that a channel's measurement-cohering power can likewise be converted into the measurement-entangling power. This result reinforces, on the dynamical level, the intuition that entanglement emerges as a manifestation of coherence. To formalize this picture, we develop resource theories for measurement-cohering and measurement-entangling powers and characterize the structure of incoherent measurements to analyze measurement-coherence generation. Furthermore, we show that the state-cohering power of a quantum channel is equivalent to the measurement-cohering power of its adjoint map, and a corresponding equivalence also exists between the state-entangling power and the measurement-entangling power.

키워드
Quantum entanglementCoherence (philosophical gambling strategy)Quantum metrologyComputer scienceOpticsPhysicsQuantum mechanicsQuantumQuantum discord
타입
preprint
IF / 인용수
- / 0
게재 연도
2024

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