In a first-order topological phase with sublattice degrees of freedom, a change in the boundary sublattice termination has no effect on the existence of gapless boundary states in …
We consider quantum condensed matter systems without particle-number conservation. Since the particle number is not a good quantum number, states belonging to different …
We consider quantum condensed matter systems without particle-number conservation. Since the particle number is not a good quantum number, states belonging to different …
The study of Dirac matter offers a cross section of some of the most dynamic topics in condensed-matter physics. Interest in Dirac-like dispersions in band structures dates back to …