Scaling theory of [Formula: see text] topological invariants.
J Phys Condens Matter
; 28(36): 365501, 2016 09 14.
Article
en En
| MEDLINE
| ID: mdl-27400801
ABSTRACT
For inversion-symmetric topological insulators and superconductors characterized by [Formula see text] topological invariants, two scaling schemes are proposed to judge topological phase transitions driven by an energy parameter. The scaling schemes renormalize either the phase gradient or the second derivative of the Pfaffian of the time-reversal operator, through which the renormalization group flow of the driving energy parameter can be obtained. The Pfaffian near the time-reversal invariant momentum is revealed to display a universal critical behavior for a great variety of models examined.
Texto completo:
1
Banco de datos:
MEDLINE
Idioma:
En
Revista:
J Phys Condens Matter
Asunto de la revista:
BIOFISICA
Año:
2016
Tipo del documento:
Article
País de afiliación:
Suiza