作者
MA Silaev, Grigory E Volovik
发表日期
2010/12
期刊
Journal of Low Temperature Physics
卷号
161
页码范围
460-473
出版商
Springer US
简介
Many quantum condensed matter systems are strongly correlated and strongly interacting fermionic systems, which cannot be treated perturbatively. However, topology allows us to determine generic features of their fermionic spectrum, which are robust to perturbation and interaction. We discuss the nodeless 3D system, such as superfluid 3He–B, vacuum of Dirac fermions, and relativistic singlet and triplet supercondutors which may arise in quark matter. The systems, which have nonzero value of topological invariant, have gapless fermions on the boundary and in the core of quantized vortices. We discuss the index theorem which relates fermion zero modes on vortices with the topological invariants in combined momentum and coordinate space.
学术搜索中的文章
MA Silaev, GE Volovik - Journal of Low Temperature Physics, 2010