dorsal/arxiv
View SchemaLocal measurements of nonlocal observables and the relativistic reduction process
| Authors | GianCarlo Ghirardi |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0003149 |
| URL | https://arxiv.org/abs/quant-ph/0003149 |
| DOI | 10.1023/A:1026497632474 |
Abstract
In this paper we reconsider the constraints which are imposed by relativistic requirements to any model of dynamical reduction. We review the debate on the subject and we call attention on the fundamental contributions by Aharonov and Albert. Having done this we present a new formulation, which is much simpler and more apt for our analysis, of the proposal put forward by these authors to perform measurements of nonlocal observables by means of local interactions and detections. We take into account recently proposed relativistic models of dynamical reduction and we show that, in spite of some mathematical difficulties related to the appearence of divergences, they represent a perfectly appropriate conceptual framework which meets all necessary requirements for a relativistic account of wave packet reduction. Subtle questions like the appropriate way to deal with counterfactual reasoning in a relativistic and nonlocal context are also analyzed in detail.
{
"annotation_id": "e2902145-aacc-449f-b730-b3bf55c2ea8c",
"date_created": "2026-03-02T18:01:38.005000Z",
"date_modified": "2026-03-02T18:01:38.005000Z",
"file_hash": "00c300370af415dd812d0d09440429fe9602a63ef64256358e472f53ed887571",
"private": false,
"record": {
"abstract": "In this paper we reconsider the constraints which are imposed by relativistic\nrequirements to any model of dynamical reduction. We review the debate on the\nsubject and we call attention on the fundamental contributions by Aharonov and\nAlbert. Having done this we present a new formulation, which is much simpler\nand more apt for our analysis, of the proposal put forward by these authors to\nperform measurements of nonlocal observables by means of local interactions and\ndetections. We take into account recently proposed relativistic models of\ndynamical reduction and we show that, in spite of some mathematical\ndifficulties related to the appearence of divergences, they represent a\nperfectly appropriate conceptual framework which meets all necessary\nrequirements for a relativistic account of wave packet reduction. Subtle\nquestions like the appropriate way to deal with counterfactual reasoning in a\nrelativistic and nonlocal context are also analyzed in detail.",
"arxiv_id": "quant-ph/0003149",
"authors": [
"GianCarlo Ghirardi"
],
"categories": [
"quant-ph"
],
"doi": "10.1023/A:1026497632474",
"title": "Local measurements of nonlocal observables and the relativistic reduction process",
"url": "https://arxiv.org/abs/quant-ph/0003149"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "2c0267c0-cd53-48a0-a139-204d05a4102b",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}