dorsal/arxiv
View SchemaDynamic response of interacting one-dimensional fermions in the harmonic atom trap: Phase response and the inhomogeneous mobility
| Authors | W. Wonneberger |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0508185 |
| URL | https://arxiv.org/abs/quant-ph/0508185 |
| DOI | 10.1016/j.physleta.2006.03.062 |
| Journal | Physics Letters A 356 (2006) 272-276 |
Abstract
The problem of the Kohn mode in bosonized theories of one-dimensional interacting fermions in the harmonic trap is investigated and a suitable modification of the interaction is proposed which preserves the Kohn mode. The modified theory is used to calculate exactly the inhomogeneous linear mobility at position z in response to a spatial force pulse at another position. It is found the inhomogeneous particle mobility exhibits resonances not only at the trap frequency but also at multiples of a new renormalized collective mode frequency which depends on the strength of the interaction. In contrast, the local response obtained by averaging over the pulse position remains that of the non-interacting system.
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"abstract": "The problem of the Kohn mode in bosonized theories of one-dimensional\ninteracting fermions in the harmonic trap is investigated and a suitable\nmodification of the interaction is proposed which preserves the Kohn mode. The\nmodified theory is used to calculate exactly the inhomogeneous linear mobility\nat position z in response to a spatial force pulse at another position. It is\nfound the inhomogeneous particle mobility exhibits resonances not only at the\ntrap frequency but also at multiples of a new renormalized collective mode\nfrequency which depends on the strength of the interaction. In contrast, the\nlocal response obtained by averaging over the pulse position remains that of\nthe non-interacting system.",
"arxiv_id": "quant-ph/0508185",
"authors": [
"W. Wonneberger"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/j.physleta.2006.03.062",
"journal_ref": "Physics Letters A 356 (2006) 272-276",
"title": "Dynamic response of interacting one-dimensional fermions in the harmonic atom trap: Phase response and the inhomogeneous mobility",
"url": "https://arxiv.org/abs/quant-ph/0508185"
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