dorsal/arxiv
View SchemaEarly Gedanken Experiments of Quantum Mechanics Revisited
| Authors | Yu Shi |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9811050 |
| URL | https://arxiv.org/abs/quant-ph/9811050 |
| DOI | 10.1002/15= |
| Journal | Annalen Phys.9:637-648,2000 |
Abstract
The famous gedanken experiments of quantum mechanics have played crucial roles in developing the Copenhagen interpretation. They are studied here from the perspective of standard quantum mechanics, with no ontological interpretation involved. Bohr's investigation of these gedanken experiments, based on the uncertainty relation with his interpretation, was the origin of the Copenhagen interpretation and is still widely adopted, but is shown to be not consistent with the quantum mechanical view. We point out that in most of these gedanken experiments, entanglement plays a crucial role, while its buildup does not change the uncertainty of the concerned quantity in the way thought by Bohr. Especially, in the gamma ray microscope and recoiling double-slit gedanken experiments, we expose the entanglement based on momentum exchange. It is shown that even in such cases, the loss of interference is only due to the entanglement with other degrees of freedom, while the uncertainty relation argument, which has not been questioned up to now, is not right.
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"abstract": "The famous gedanken experiments of quantum mechanics have played crucial\nroles in developing the Copenhagen interpretation. They are studied here from\nthe perspective of standard quantum mechanics, with no ontological\ninterpretation involved. Bohr\u0027s investigation of these gedanken experiments,\nbased on the uncertainty relation with his interpretation, was the origin of\nthe Copenhagen interpretation and is still widely adopted, but is shown to be\nnot consistent with the quantum mechanical view. We point out that in most of\nthese gedanken experiments, entanglement plays a crucial role, while its\nbuildup does not change the uncertainty of the concerned quantity in the way\nthought by Bohr. Especially, in the gamma ray microscope and recoiling\ndouble-slit gedanken experiments, we expose the entanglement based on momentum\nexchange. It is shown that even in such cases, the loss of interference is only\ndue to the entanglement with other degrees of freedom, while the uncertainty\nrelation argument, which has not been questioned up to now, is not right.",
"arxiv_id": "quant-ph/9811050",
"authors": [
"Yu Shi"
],
"categories": [
"quant-ph"
],
"doi": "10.1002/15=",
"journal_ref": "Annalen Phys.9:637-648,2000",
"title": "Early Gedanken Experiments of Quantum Mechanics Revisited",
"url": "https://arxiv.org/abs/quant-ph/9811050"
},
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