dorsal/arxiv
View SchemaLong-wavelength spin- and spin-isospin correlations in nucleon matter
| Authors | G. I. Lykasov, E. Olsson, C. J. Pethick |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0502026 |
| URL | https://arxiv.org/abs/nucl-th/0502026 |
| DOI | 10.1103/PhysRevC.72.025805 |
| Journal | Phys.Rev. C72 (2005) 025805 |
Abstract
We analyse the long-wavelength response of a normal Fermi liquid using Landau theory. We consider contributions from intermediate states containing one additional quasiparticle-quasihole pair as well as those from states containing two or more additional quasiparticle-quasihole pairs. For the response of an operator corresponding to a conserved quantity, we show that the behavior of matrix elements to states with more than one additional quasiparticle-quasihole pair at low excitation energies $\omega$ varies as $1/\omega$. It is shown how rates of processes involving transitions to two quasiparticle-quasihole states may be calculated in terms of the collision integral in the Landau transport equation for quasiparticles.
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"abstract": "We analyse the long-wavelength response of a normal Fermi liquid using Landau\ntheory. We consider contributions from intermediate states containing one\nadditional quasiparticle-quasihole pair as well as those from states containing\ntwo or more additional quasiparticle-quasihole pairs. For the response of an\noperator corresponding to a conserved quantity, we show that the behavior of\nmatrix elements to states with more than one additional quasiparticle-quasihole\npair at low excitation energies $\\omega$ varies as $1/\\omega$. It is shown how\nrates of processes involving transitions to two quasiparticle-quasihole states\nmay be calculated in terms of the collision integral in the Landau transport\nequation for quasiparticles.",
"arxiv_id": "nucl-th/0502026",
"authors": [
"G. I. Lykasov",
"E. Olsson",
"C. J. Pethick"
],
"categories": [
"nucl-th",
"astro-ph"
],
"doi": "10.1103/PhysRevC.72.025805",
"journal_ref": "Phys.Rev. C72 (2005) 025805",
"title": "Long-wavelength spin- and spin-isospin correlations in nucleon matter",
"url": "https://arxiv.org/abs/nucl-th/0502026"
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