dorsal/arxiv
View SchemaGravitational self-localization in quantum measurement
| Authors | Tamas Geszti |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0401086 |
| URL | https://arxiv.org/abs/quant-ph/0401086 |
| DOI | 10.1103/PhysRevA.69.032110 |
| Journal | Phys.Rev. A69 (2004) 032110 |
Abstract
Within Newton-Schr\"odinger quantum mechanics which allows gravitational self-interaction, it is shown that a no-split no-collapse measurement scenario is possible. A macroscopic pointer moves at low acceleration, controlled by the Ehrenfest-averaged force acting on it. That makes classicality self-sustaining, resolves Everett's paradox, and outlines a way to spontaneous emergence of quantum randomness. Numerical estimates indicate that enhanced short-range gravitational forces are needed for the scenario to work. The scheme fails to explain quantum nonlocality, including two-detector anticorrelations, which points towards the need of a nonlocal modification of the Newton-Schr\"odinger coupling scheme.
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"abstract": "Within Newton-Schr\\\"odinger quantum mechanics which allows gravitational\nself-interaction, it is shown that a no-split no-collapse measurement scenario\nis possible. A macroscopic pointer moves at low acceleration, controlled by the\nEhrenfest-averaged force acting on it. That makes classicality self-sustaining,\nresolves Everett\u0027s paradox, and outlines a way to spontaneous emergence of\nquantum randomness. Numerical estimates indicate that enhanced short-range\ngravitational forces are needed for the scenario to work. The scheme fails to\nexplain quantum nonlocality, including two-detector anticorrelations, which\npoints towards the need of a nonlocal modification of the Newton-Schr\\\"odinger\ncoupling scheme.",
"arxiv_id": "quant-ph/0401086",
"authors": [
"Tamas Geszti"
],
"categories": [
"quant-ph",
"gr-qc"
],
"doi": "10.1103/PhysRevA.69.032110",
"journal_ref": "Phys.Rev. A69 (2004) 032110",
"title": "Gravitational self-localization in quantum measurement",
"url": "https://arxiv.org/abs/quant-ph/0401086"
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