7 papers
Spatiotemporal chaos in the interface growth of topological insulators
Yutaro Tanaka, Akira Furusaki
We demonstrate that topological insulators exhibit an intrinsic interfacial instability that amplifies small interface fluctuations, resulting in chaotic behavior during interface…
Majorana-assisted nonlocal spin correlation in quasi-one-dimensional Kitaev spin liquids
Yuki Yamazaki, Shingo Kobayashi, Akira Furusaki
We propose Majorana-assisted nonlocal spin correlation as a manifestation of Majorana nonlocality in quasi-one-dimensional (1D) Kitaev spin liquids. Focusing on the flux-free secto…
Symmetry-Enforced Nodal -Wave Magnets
Moritz M. Hirschmann, Akira Furusaki, Max Hirschberger
Owing to their relevance for spintronics, electronic band splitting and spin-polarization textures in magnets are active areas of research. In non-collinear magnets, alternating sp…
Euler band topology in superfluids and superconductors
Shingo Kobayashi, Manabu Sato, Akira Furusaki
Real band topology often appears in systems with space-time inversion symmetry and is characterized by invariants such as the Euler and second Stiefel-Whitney classes. Here, we exa…
Three-dimensional spinless Euler insulators with rotational symmetry
Manabu Sato, Shingo Kobayashi, Motoaki Hirayama +1
The Euler class is a -valued topological invariant that characterizes a pair of real bands in a two-dimensional Brillouin zone. One of the symmetries that permits its d…
Exact quantization of topological order parameter in SU() spin models, -ality transformation and ingappabilities
Hang Su, Yuan Yao, Akira Furusaki
We show that the ground-state expectation value of twisting operator is a topological order parameter for - and -symmetric symmetry-protected topologic…