On the topology of the Fermi surface in dense neutron matter

被引：0
作者：
S. S. Pankratov
M. V. Zverev
机构：
[1] National Research Centre Kurchatov Institute,
[2] Moscow Institute of Physics and Technology (State University),undefined
来源：
JETP Letters | 2013年 / 97卷
关键词：
Fermi Surface; JETP Letter; Order Transition; Landau Theory; Neutron Matter;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The model of dense neutron matter has been considered, where the topological rearrangement of the ground state of the system of Landau quasiparticles, which is associated with the appearance of the second sheet of the Fermi surface, occurs through two different scenarios. The rearrangement scenario depends on the relation between the wave vector qc of critical spin-isospin fluctuations and the Fermi momentum pF. Rearrangement at qc < pF occurs continuously with vanishing of the topological rigidity, whereas rearrangement at qc > pF occurs with the stepwise appearance of a bubble with a radius of about 0.5pF in the filled Fermi sphere.
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页码：163 / 169
页数：6
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