dorsal/arxiv
View SchemaQuantum reference systems: reconciling locality with quantum mechanics
| Authors | Gyula Bene |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0008128 |
| URL | https://arxiv.org/abs/quant-ph/0008128 |
Abstract
The status of locality in quantum mechanics is analyzed from a nonstandard point of view. It is assumed that quantum states are relative, they depend on and are defined with respect to some bigger physical system which contains the former system as a subsystem. Hence, the bigger system acts as a reference system. It is shown that quantum mechanics can be reformulated in accordance with this new physical assumption. There is an important consequence of this dependence: states may not be comparable, i.e., they cannot be checked by suitable measurements simultaneously. This special circumstance is fully reflected mathematically by the theory. Especially, it is shown that certain joint probabilities (or the corresponding combined events) which play a vital role in any proof of Bell's theorem do not exist. The conclusion is that the principle of locality is fully valid in quantum mechanics, and one has to give up instead of locality an intuitively natural-looking feature of realism, namely, the comparability of existing states.
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"abstract": "The status of locality in quantum mechanics is analyzed from a nonstandard\npoint of view. It is assumed that quantum states are relative, they depend on\nand are defined with respect to some bigger physical system which contains the\nformer system as a subsystem. Hence, the bigger system acts as a reference\nsystem. It is shown that quantum mechanics can be reformulated in accordance\nwith this new physical assumption. There is an important consequence of this\ndependence: states may not be comparable, i.e., they cannot be checked by\nsuitable measurements simultaneously. This special circumstance is fully\nreflected mathematically by the theory. Especially, it is shown that certain\njoint probabilities (or the corresponding combined events) which play a vital\nrole in any proof of Bell\u0027s theorem do not exist. The conclusion is that the\nprinciple of locality is fully valid in quantum mechanics, and one has to give\nup instead of locality an intuitively natural-looking feature of realism,\nnamely, the comparability of existing states.",
"arxiv_id": "quant-ph/0008128",
"authors": [
"Gyula Bene"
],
"categories": [
"quant-ph"
],
"title": "Quantum reference systems: reconciling locality with quantum mechanics",
"url": "https://arxiv.org/abs/quant-ph/0008128"
},
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