dorsal/arxiv
View SchemaFundamental gravitational limitations to quantum computing
| Authors | Rodolfo Gambini, Rafael A. Porto, Jorge Pullin |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0507262 |
| URL | https://arxiv.org/abs/quant-ph/0507262 |
| Journal | "Gravity astrophysics and strings at the black sea". P. Fiziev, M. Todorov editors, St. Kliment Ohridski Press (2006) |
Abstract
Lloyd has considered the ultimate limitations physics places on quantum computers. He concludes in particular that for an ``ultimate laptop'' (a computer of one liter of volume and one kilogram of mass) the maximum number of operations per second is bounded by $10^{51}$. The limit is derived considering ordinary quantum mechanics. Here we consider additional limits that are placed by quantum gravity ideas, namely the use of a relational notion of time and fundamental gravitational limits that exist on time measurements. We then particularize for the case of an ultimate laptop and show that the maximum number of operations is further constrained to $10^{47}$ per second.
{
"annotation_id": "940be9cb-3a7e-4dda-90ad-8ec6f161b70f",
"date_created": "2026-03-02T18:02:19.831000Z",
"date_modified": "2026-03-02T18:02:19.831000Z",
"file_hash": "1abb54c8b235776d3b0ddc1e549269926c9b25095e62e84133ca062f41f43f8e",
"private": false,
"record": {
"abstract": "Lloyd has considered the ultimate limitations physics places on quantum\ncomputers. He concludes in particular that for an ``ultimate laptop\u0027\u0027 (a\ncomputer of one liter of volume and one kilogram of mass) the maximum number of\noperations per second is bounded by $10^{51}$. The limit is derived considering\nordinary quantum mechanics. Here we consider additional limits that are placed\nby quantum gravity ideas, namely the use of a relational notion of time and\nfundamental gravitational limits that exist on time measurements. We then\nparticularize for the case of an ultimate laptop and show that the maximum\nnumber of operations is further constrained to $10^{47}$ per second.",
"arxiv_id": "quant-ph/0507262",
"authors": [
"Rodolfo Gambini",
"Rafael A. Porto",
"Jorge Pullin"
],
"categories": [
"quant-ph",
"gr-qc",
"hep-th"
],
"journal_ref": "\"Gravity astrophysics and strings at the black sea\". P. Fiziev, M.\n Todorov editors, St. Kliment Ohridski Press (2006)",
"title": "Fundamental gravitational limitations to quantum computing",
"url": "https://arxiv.org/abs/quant-ph/0507262"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "8a19ee78-9471-4a95-b4e5-ebbb5a7bbc82",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}