dorsal/arxiv
View SchemaExperimental application of decoherence-free subspaces in a quantum-computing algorithm
| Authors | Masoud Mohseni, Jeffrey S. Lundeen, Kevin J. Resch, Aephraim M. Steinberg |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0212134 |
| URL | https://arxiv.org/abs/quant-ph/0212134 |
| DOI | 10.1103/PhysRevLett.91.187903 |
| Journal | Phys. Rev. Lett. 91, 187903 (2003) |
Abstract
For a practical quantum computer to operate, it will be essential to properly manage decoherence. One important technique for doing this is the use of "decoherence-free subspaces" (DFSs), which have recently been demonstrated. Here we present the first use of DFSs to improve the performance of a quantum algorithm. An optical implementation of the Deutsch-Jozsa algorithm can be made insensitive to a particular class of phase noise by encoding information in the appropriate subspaces; we observe a reduction of the error rate from 35% to essentially its pre-noise value of 8%.
{
"annotation_id": "70e187e7-e594-4cd2-a757-62d4b3956996",
"date_created": "2026-03-02T18:01:56.465000Z",
"date_modified": "2026-03-02T18:01:56.465000Z",
"file_hash": "bf25bf7a22487aabec4b3226b3abcedcdcc0686dd798bcf9c48f1b027139fd1d",
"private": false,
"record": {
"abstract": "For a practical quantum computer to operate, it will be essential to properly\nmanage decoherence. One important technique for doing this is the use of\n\"decoherence-free subspaces\" (DFSs), which have recently been demonstrated.\nHere we present the first use of DFSs to improve the performance of a quantum\nalgorithm. An optical implementation of the Deutsch-Jozsa algorithm can be made\ninsensitive to a particular class of phase noise by encoding information in the\nappropriate subspaces; we observe a reduction of the error rate from 35% to\nessentially its pre-noise value of 8%.",
"arxiv_id": "quant-ph/0212134",
"authors": [
"Masoud Mohseni",
"Jeffrey S. Lundeen",
"Kevin J. Resch",
"Aephraim M. Steinberg"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.91.187903",
"journal_ref": "Phys. Rev. Lett. 91, 187903 (2003)",
"title": "Experimental application of decoherence-free subspaces in a quantum-computing algorithm",
"url": "https://arxiv.org/abs/quant-ph/0212134"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "d9d937d6-d9d1-40e4-8e0e-04f520d9e72c",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}