dorsal/arxiv
View SchemaTheory of Initialization-Free Decoherence-Free Subspaces and Subsystems
| Authors | A. Shabani, D. A. Lidar |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0505051 |
| URL | https://arxiv.org/abs/quant-ph/0505051 |
| DOI | 10.1103/PhysRevA.72.042303 |
| Journal | Phys. Rev. A 72, 042303 (2005) |
Abstract
We introduce a generalized theory of decoherence-free subspaces and subsystems (DFSs), which do not require accurate initialization. We derive a new set of conditions for the existence of DFSs within this generalized framework. By relaxing the initialization requirement we show that a DFS can tolerate arbitrarily large preparation errors. This has potentially significant implications for experiments involving DFSs, in particular for the experimental implementation, over DFSs, of the large class of quantum algorithms which can function with arbitrary input states.
{
"annotation_id": "50437a35-38f1-4416-ad1a-7830dd94120d",
"date_created": "2026-03-02T18:02:16.807000Z",
"date_modified": "2026-03-02T18:02:16.807000Z",
"file_hash": "e4e46fc46017bcc4b6e92b3fe7b8d6b6a68fb10d26e0deb6d756eba2abd283b6",
"private": false,
"record": {
"abstract": "We introduce a generalized theory of decoherence-free subspaces and\nsubsystems (DFSs), which do not require accurate initialization. We derive a\nnew set of conditions for the existence of DFSs within this generalized\nframework. By relaxing the initialization requirement we show that a DFS can\ntolerate arbitrarily large preparation errors. This has potentially significant\nimplications for experiments involving DFSs, in particular for the experimental\nimplementation, over DFSs, of the large class of quantum algorithms which can\nfunction with arbitrary input states.",
"arxiv_id": "quant-ph/0505051",
"authors": [
"A. Shabani",
"D. A. Lidar"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.72.042303",
"journal_ref": "Phys. Rev. A 72, 042303 (2005)",
"title": "Theory of Initialization-Free Decoherence-Free Subspaces and Subsystems",
"url": "https://arxiv.org/abs/quant-ph/0505051"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "eaf8d49a-8b69-4c25-8b0e-026cdf56803c",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}