dorsal/arxiv
View SchemaIs quantum decoherence reality or appearance?
| Authors | F. Herbut |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0107049 |
| URL | https://arxiv.org/abs/quant-ph/0107049 |
Abstract
It has been experimentally demonstrated that quantum coherence can persist in macroscopic phenomena [J.R. Friedman et al.,Nature, 406 (2000) 43]. To face the challenge of this new fact, in this article QM in its standard form is assumed to be extended by one beable (hidden variable), i. e., a quantum observable with always definite values in nature (but usually only statistically given in the quantum state). Localization is taken as the most plausible beable. The paradoxical aspects of conventional QM take now a different form. Suitably defining the notion of "subject" fully within the QM formalism, proving the quantum conditional subsystem-state theorem, and choosing the relative-decoherence interpretation of QM, the paradoxes formally disappear, leaving one with decoherence relative to the definite values of the beable; thus being only appearance, not absolute reality in QM. Relative to a different subject one has perseverance of coherence. Hence, in this approach it is claimed that decoherence and coherence, both exist in reality, but are not "seen" by the same subject, and "subject" is, in this interpretation, indispensable. The two mentioned, apparently contradictory phenomena, are in this way decoupled from each other, contradiction is avoided, and any one of the two can be treated in the way that is usual in QM.
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"abstract": "It has been experimentally demonstrated that quantum coherence can persist in\nmacroscopic phenomena [J.R. Friedman et al.,Nature, 406 (2000) 43]. To face the\nchallenge of this new fact, in this article QM in its standard form is assumed\nto be extended by one beable (hidden variable), i. e., a quantum observable\nwith always definite values in nature (but usually only statistically given in\nthe quantum state). Localization is taken as the most plausible beable. The\nparadoxical aspects of conventional QM take now a different form. Suitably\ndefining the notion of \"subject\" fully within the QM formalism, proving the\nquantum conditional subsystem-state theorem, and choosing the\nrelative-decoherence interpretation of QM, the paradoxes formally disappear,\nleaving one with decoherence relative to the definite values of the beable;\nthus being only appearance, not absolute reality in QM. Relative to a different\nsubject one has perseverance of coherence. Hence, in this approach it is\nclaimed that decoherence and coherence, both exist in reality, but are not\n\"seen\" by the same subject, and \"subject\" is, in this interpretation,\nindispensable. The two mentioned, apparently contradictory phenomena, are in\nthis way decoupled from each other, contradiction is avoided, and any one of\nthe two can be treated in the way that is usual in QM.",
"arxiv_id": "quant-ph/0107049",
"authors": [
"F. Herbut"
],
"categories": [
"quant-ph"
],
"title": "Is quantum decoherence reality or appearance?",
"url": "https://arxiv.org/abs/quant-ph/0107049"
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