Accessible quantum discord degrades monotonically with rising Hawking acceleration under the three noise channels without sudden death, while inaccessible discord rises from zero, with symmetric behavior in flip channels.
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Redefines quantum states as equivalence classes of density operators to show the contradiction between unitary Schrödinger dynamics and outcome reduction becomes negligible in a suitable limit, unifying with decoherence and von Neumann entropy ideas.
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Quantum discord of mixed states under noisy channels in the curved spacetime
Accessible quantum discord degrades monotonically with rising Hawking acceleration under the three noise channels without sudden death, while inaccessible discord rises from zero, with symmetric behavior in flip channels.
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Emergence of outcomes in quantum mechanics
Redefines quantum states as equivalence classes of density operators to show the contradiction between unitary Schrödinger dynamics and outcome reduction becomes negligible in a suitable limit, unifying with decoherence and von Neumann entropy ideas.