dorsal/arxiv
View SchemaMedium modification of two-particle scattering in nonideal Bose systems
| Authors | H. Stein, K. Morawetz, G. Röpke |
|---|---|
| Categories | |
| ArXiv ID | physics/9802052 |
| URL | https://arxiv.org/abs/physics/9802052 |
| DOI | 10.1103/PhysRevA.55.1945 |
| Journal | Phys.Rev. A55 (2000) 1945 |
Abstract
Medium modification of scattering properties in interacting Bose systems are considered by solving the Bethe-Salpeter equation. An equation of state for the normal phase (generalized Beth-Uhlenbeck formula) is given using the in-medium phase shifts to include two-particle correlations. Conclusions are drawn for systems of bosonic atoms with repulsive interaction such as sodium $^{23}$Na and rubidium $^{87}$Rb. It is shown that the in-medium scattering length and the absolute value of the in-medium scattering phase shift for low scattering energies increase with density.
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"abstract": "Medium modification of scattering properties in interacting Bose systems are\nconsidered by solving the Bethe-Salpeter equation. An equation of state for the\nnormal phase (generalized Beth-Uhlenbeck formula) is given using the in-medium\nphase shifts to include two-particle correlations. Conclusions are drawn for\nsystems of bosonic atoms with repulsive interaction such as sodium $^{23}$Na\nand rubidium $^{87}$Rb. It is shown that the in-medium scattering length and\nthe absolute value of the in-medium scattering phase shift for low scattering\nenergies increase with density.",
"arxiv_id": "physics/9802052",
"authors": [
"H. Stein",
"K. Morawetz",
"G. R\u00f6pke"
],
"categories": [
"physics.atom-ph",
"cond-mat.stat-mech",
"nucl-th",
"physics.acc-ph"
],
"doi": "10.1103/PhysRevA.55.1945",
"journal_ref": "Phys.Rev. A55 (2000) 1945",
"title": "Medium modification of two-particle scattering in nonideal Bose systems",
"url": "https://arxiv.org/abs/physics/9802052"
},
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