It is shown that phase-space Fisher information marks topological phase transitions in 2D Dirac gapped materials. The phase-space Fisher information determined for electrons and holes exhibit minimum at the charge neutrality points. Topological quantum numbers are defined to identify different phases utilizing combined information measures. Upper and lower bounds are derived for the phase-space Fisher information.
- Dirac materials
- Phase-space Fisher information
- Topological phase transitions
ASJC Scopus subject areas
- Applied Mathematics