dorsal/arxiv
View SchemaSingle-particle nonlocality and entanglement with the vacuum
| Authors | G. Bjork, P. Jonsson, L. L. Sanchez-Soto |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0103074 |
| URL | https://arxiv.org/abs/quant-ph/0103074 |
| DOI | 10.1103/PhysRevA.64.042106 |
Abstract
We propose a single-particle experiment that is equivalent to the conventional two-particle experiment used to demonstrate a violation of Bell's inequalities. Hence, we argue that quantum mechanical nonlocality can be demonstrated by single-particle states. The validity of such a claim has been discussed in the literature, but without reaching a clear consensus. We show that the disagreement can be traced to what part of the total state of the experiment one assigns to the (macroscopic) measurement apparatus. However, with a conventional and legitimate interpretation of the measurement process one is led to the conclusion that even a single particle can show nonlocal properties.
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"abstract": "We propose a single-particle experiment that is equivalent to the\nconventional two-particle experiment used to demonstrate a violation of Bell\u0027s\ninequalities. Hence, we argue that quantum mechanical nonlocality can be\ndemonstrated by single-particle states. The validity of such a claim has been\ndiscussed in the literature, but without reaching a clear consensus. We show\nthat the disagreement can be traced to what part of the total state of the\nexperiment one assigns to the (macroscopic) measurement apparatus. However,\nwith a conventional and legitimate interpretation of the measurement process\none is led to the conclusion that even a single particle can show nonlocal\nproperties.",
"arxiv_id": "quant-ph/0103074",
"authors": [
"G. Bjork",
"P. Jonsson",
"L. L. Sanchez-Soto"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.64.042106",
"title": "Single-particle nonlocality and entanglement with the vacuum",
"url": "https://arxiv.org/abs/quant-ph/0103074"
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