A real-space many-body marker for correlated ${\mathbb{Z}}_2$ topological insulators

Ivan Gilardoni, Federico Becca, Antimo Marrazzo +1

Taking the clue from the modern theory of polarization [R. Resta, Rev. Mod. Phys. {\bf 66}, 899 (1994)], we identify an operator to distinguish between ${\mathbb{Z}}_2$-even (trivia…