Dynamic Structure Function in 3he-4he Mixtures

J. Boronat; F. Dalfovo; F. Mazzanti; A. Polls

doi:10.1016/0921-4526(94)90759-5

Dynamic Structure Function in 3he-4he Mixtures

凝聚态物理 2009-10-22 v1

作者: J. Boronat , F. Dalfovo , F. Mazzanti , A. Polls

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摘要

Relevant features of the dynamic structure function $S(q,\omega)$ in $^3$ He- $^4$ He mixtures at zero temperature are investigated starting from known properties of the ground state. Sum rules are used to fix rigorous constraints to the different contributions to $S(q,\omega)$ , coming from $^3$ He and $^4$ He elementary excitations, as well as to explore the role of the cross term $S^{(3,4)}(q,\omega)$ . Both the low- $q$ (phonon-roton $^4$ He excitations and 1p-1h $^3$ He excitations) and high- $q$ (deep inelastic scattering) ranges are discussed.

引用

@article{arxiv.cond-mat/9303005,
  title  = {Dynamic Structure Function in 3he-4he Mixtures},
  author = {J. Boronat and F. Dalfovo and F. Mazzanti and A. Polls},
  journal= {arXiv preprint arXiv:cond-mat/9303005},
  year   = {2009}
}

备注

29 pages, Plain TeX, 11 figures available by request from [email protected]

Dynamic Structure Function in 3he-4he Mixtures

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