dorsal/arxiv
View SchemaIs it possible to observe experimentally a metal-insulator transition in ultra cold atoms?
| Authors | Antonio M. Garcia-Garcia, Jiao Wang |
|---|---|
| Categories | |
| ArXiv ID | physics/0608235 |
| URL | https://arxiv.org/abs/physics/0608235 |
| DOI | 10.1103/PhysRevA.74.063629 |
| Journal | Phys. Rev. A 74, 063629 (2006). |
Abstract
Kicked rotors with certain non-analytic potentials avoid dynamical localization and undergo a metal-insulator transition. We show that typical properties of this transition are still present as the non-analyticity is progressively smoothed out provided that the smoothing is less than a certain limiting value. We have identified a smoothing dependent time scale such that full dynamical localization is absent and the quantum momentum distribution develops power-law tails with anomalous decay exponents as in the case of a conductor at the metal-insulator transition. We discuss under what conditions these findings may be verified experimentally by using ultra cold atoms techniques. It is found that ultra-cold atoms can indeed be utilized for the experimental investigation of the metal-insulator transition.
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"abstract": "Kicked rotors with certain non-analytic potentials avoid dynamical\nlocalization and undergo a metal-insulator transition. We show that typical\nproperties of this transition are still present as the non-analyticity is\nprogressively smoothed out provided that the smoothing is less than a certain\nlimiting value. We have identified a smoothing dependent time scale such that\nfull dynamical localization is absent and the quantum momentum distribution\ndevelops power-law tails with anomalous decay exponents as in the case of a\nconductor at the metal-insulator transition. We discuss under what conditions\nthese findings may be verified experimentally by using ultra cold atoms\ntechniques. It is found that ultra-cold atoms can indeed be utilized for the\nexperimental investigation of the metal-insulator transition.",
"arxiv_id": "physics/0608235",
"authors": [
"Antonio M. Garcia-Garcia",
"Jiao Wang"
],
"categories": [
"physics.atom-ph",
"cond-mat.dis-nn",
"nlin.CD"
],
"doi": "10.1103/PhysRevA.74.063629",
"journal_ref": "Phys. Rev. A 74, 063629 (2006).",
"title": "Is it possible to observe experimentally a metal-insulator transition in ultra cold atoms?",
"url": "https://arxiv.org/abs/physics/0608235"
},
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