dorsal/arxiv
View SchemaExperimental evidence for the role of cantori as barriers in a quantum system
| Authors | K. M. D. Vant, G. H. Ball, H. Ammann, N. L. Christensen |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9902025 |
| URL | https://arxiv.org/abs/quant-ph/9902025 |
| DOI | 10.1103/PhysRevE.59.2846 |
| Journal | Phys.Rev. E59 (1999) 2846-2852 |
Abstract
We investigate the effect of cantori on momentum diffusion in a quantum system. Ultracold caesium atoms are subjected to a specifically designed periodically pulsed standing wave. A cantorus separates two chaotic regions of the classical phase space. Diffusion through the cantorus is classically predicted. Quantum diffusion is only significant when the classical phase-space area escaping through the cantorus per period greatly exceeds Planck's constant. Experimental data and a quantum analysis confirm that the cantori act as barriers.
{
"annotation_id": "2ab33fdb-f0f1-4d9c-b8cd-209b43fa1427",
"date_created": "2026-03-02T18:02:45.242000Z",
"date_modified": "2026-03-02T18:02:45.242000Z",
"file_hash": "6cc7978d11f807eff16842cd02bcd126557af20f34959e7ab1e0d6f2d6a2ded4",
"private": false,
"record": {
"abstract": "We investigate the effect of cantori on momentum diffusion in a quantum\nsystem. Ultracold caesium atoms are subjected to a specifically designed\nperiodically pulsed standing wave. A cantorus separates two chaotic regions of\nthe classical phase space. Diffusion through the cantorus is classically\npredicted. Quantum diffusion is only significant when the classical phase-space\narea escaping through the cantorus per period greatly exceeds Planck\u0027s\nconstant. Experimental data and a quantum analysis confirm that the cantori act\nas barriers.",
"arxiv_id": "quant-ph/9902025",
"authors": [
"K. M. D. Vant",
"G. H. Ball",
"H. Ammann",
"N. L. Christensen"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevE.59.2846",
"journal_ref": "Phys.Rev. E59 (1999) 2846-2852",
"title": "Experimental evidence for the role of cantori as barriers in a quantum system",
"url": "https://arxiv.org/abs/quant-ph/9902025"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "24d98159-0c76-4cbf-a021-d04914604aa7",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}