dorsal/arxiv
View SchemaSpin-dependent forces on trapped ions for phase-stable quantum gates and motional Schrodinger-cat states
| Authors | P. C. Haljan, K. -A. Brickman, L. Deslauriers, P. J. Lee, C. Monroe |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0411068 |
| URL | https://arxiv.org/abs/quant-ph/0411068 |
| DOI | 10.1103/PhysRevLett.94.153602 |
Abstract
Favored schemes for trapped-ion quantum logic gates use bichromatic laser fields to couple internal qubit states with external motion through a "spin-dependent force." We introduce a new degree of freedom in this coupling that reduces its sensitivity to phase decoherence. We demonstrate bichromatic spin-dependent forces on a single trapped $^{111}$Cd$^+$ ion, and show that phase coherence of the resulting "Schr\"{o}dinger-cat" states of motion depends critically upon the spectral arrangement of the optical fields. This applies directly to the operation of entangling gates on multiple ions.
{
"annotation_id": "9ffe30ed-daa8-4a2f-8ac9-086e34e30f0a",
"date_created": "2026-03-02T18:02:12.914000Z",
"date_modified": "2026-03-02T18:02:12.914000Z",
"file_hash": "7665f9a0d4eceba19ad7eee75a468f2da4ea3565fff7ccd9b004e209f487cbdb",
"private": false,
"record": {
"abstract": "Favored schemes for trapped-ion quantum logic gates use bichromatic laser\nfields to couple internal qubit states with external motion through a\n\"spin-dependent force.\" We introduce a new degree of freedom in this coupling\nthat reduces its sensitivity to phase decoherence. We demonstrate bichromatic\nspin-dependent forces on a single trapped $^{111}$Cd$^+$ ion, and show that\nphase coherence of the resulting \"Schr\\\"{o}dinger-cat\" states of motion depends\ncritically upon the spectral arrangement of the optical fields. This applies\ndirectly to the operation of entangling gates on multiple ions.",
"arxiv_id": "quant-ph/0411068",
"authors": [
"P. C. Haljan",
"K. -A. Brickman",
"L. Deslauriers",
"P. J. Lee",
"C. Monroe"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.94.153602",
"title": "Spin-dependent forces on trapped ions for phase-stable quantum gates and motional Schrodinger-cat states",
"url": "https://arxiv.org/abs/quant-ph/0411068"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "0f58fcc3-0ba1-4a9c-a322-b4d0b2a85af3",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}