dorsal/arxiv
View SchemaUltracold Few-Boson Systems in a Double-Well Trap
| Authors | Sascha Zöllner, Hans-Dieter Meyer, Peter Schmelcher |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0605210 |
| URL | https://arxiv.org/abs/quant-ph/0605210 |
| DOI | 10.1103/PhysRevA.74.053612 |
| Journal | Phys. Rev. A 74, 053612 (2006) |
Abstract
We investigate the transition of a quasi-one-dimensional few-boson system from a weakly correlated to a fragmented and finally a fermionized ground state. Our numerically exact analysis, based on a multi-configurational method, explores the interplay between different shapes of external and inter-particle forces. Specifically, we demonstrate that the addition of a central barrier to an otherwise harmonic trap may supports the system's fragmentation, with a symmetry-induced distinction between even and odd atom numbers. Moreover, the impact of inhomogeneous interactions is studied, where the effective coupling strength is spatially modulated. It is laid out how the ground state can be displaced in a controlled way depending on the trap and the degree of modulation. We present the one- and two-body densities and, beyond that, highlight the role of correlations on the basis of the natural occupations.
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"abstract": "We investigate the transition of a quasi-one-dimensional few-boson system\nfrom a weakly correlated to a fragmented and finally a fermionized ground\nstate. Our numerically exact analysis, based on a multi-configurational method,\nexplores the interplay between different shapes of external and inter-particle\nforces. Specifically, we demonstrate that the addition of a central barrier to\nan otherwise harmonic trap may supports the system\u0027s fragmentation, with a\nsymmetry-induced distinction between even and odd atom numbers. Moreover, the\nimpact of inhomogeneous interactions is studied, where the effective coupling\nstrength is spatially modulated. It is laid out how the ground state can be\ndisplaced in a controlled way depending on the trap and the degree of\nmodulation. We present the one- and two-body densities and, beyond that,\nhighlight the role of correlations on the basis of the natural occupations.",
"arxiv_id": "quant-ph/0605210",
"authors": [
"Sascha Z\u00f6llner",
"Hans-Dieter Meyer",
"Peter Schmelcher"
],
"categories": [
"quant-ph",
"cond-mat.other"
],
"doi": "10.1103/PhysRevA.74.053612",
"journal_ref": "Phys. Rev. A 74, 053612 (2006)",
"title": "Ultracold Few-Boson Systems in a Double-Well Trap",
"url": "https://arxiv.org/abs/quant-ph/0605210"
},
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