dorsal/arxiv
View SchemaQuantum nonlocality and quantum dynamics
| Authors | S. Gheorghiu-Svirschevski |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0203153 |
| URL | https://arxiv.org/abs/quant-ph/0203153 |
Abstract
We argue that usual quantum statics and the dynamical equivalence of mixed quantum states to {\it probabilistic mixtures}suffice to guarantee a linear evolution law, which necessarily complies with the no-signaling condition. Alternatively, there are nonlinear dynamical extensions that treat mixed states as {\it elementary mixtures} and evolve {\it every}pure state linearly and unitarily. But if all {\it entangled} pure states evolve linearly, then elementary mixtures cannot evolve nonlinearly without challenging quantum locality. Conversely, any such extension that is relativistically well behaved demands a nonlinear evolution [decoherence] of pure entangled states. Wherefrom follows that the linear evolution of entangled pure states provides an unequivocal signature of linear quantum dynamics.
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"abstract": "We argue that usual quantum statics and the dynamical equivalence of mixed\nquantum states to {\\it probabilistic mixtures}suffice to guarantee a linear\nevolution law, which necessarily complies with the no-signaling condition.\nAlternatively, there are nonlinear dynamical extensions that treat mixed states\nas {\\it elementary mixtures} and evolve {\\it every}pure state linearly and\nunitarily. But if all {\\it entangled} pure states evolve linearly, then\nelementary mixtures cannot evolve nonlinearly without challenging quantum\nlocality. Conversely, any such extension that is relativistically well behaved\ndemands a nonlinear evolution [decoherence] of pure entangled states. Wherefrom\nfollows that the linear evolution of entangled pure states provides an\nunequivocal signature of linear quantum dynamics.",
"arxiv_id": "quant-ph/0203153",
"authors": [
"S. Gheorghiu-Svirschevski"
],
"categories": [
"quant-ph"
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"title": "Quantum nonlocality and quantum dynamics",
"url": "https://arxiv.org/abs/quant-ph/0203153"
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