Objectivity in finite-environment quantum Brownian motion holds only on timescales defined by oscillator frequency ratios and is enhanced near phase π/2 due to trajectory effects.
Schlosshauer, Decoherence and the Quantum-to- Classical Transition (Springer, Berlin, 2007)
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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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Objectivity in the quantum Brownian motion revisited
Objectivity in finite-environment quantum Brownian motion holds only on timescales defined by oscillator frequency ratios and is enhanced near phase π/2 due to trajectory effects.
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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.