Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Hiromu Araki"'
Publikováno v:
Physical Review Research, Vol 2, Iss 1, p 012009 (2020)
We propose the Z_{Q} Berry phase as a topological invariant for higher-order symmetry-protected topological (HOSPT) phases for two- and three-dimensional systems. It is topologically stable for electron-electron interactions assuming the gap remains
Externí odkaz:
https://doaj.org/article/92bcc8983266434c912efb5d29cba941
We study the characteristic probability density distribution of random flat band models by machine learning. The models considered here are constructed on the basis of the molecular-orbital representation, which guarantees the existence of the macros
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aff580d97c3bbe6e6b5eb9637013e69e
Publikováno v:
Physical Review B. 101
We propose a realization of higher-order topological phases in a spring-mass model with a breathing kagome structure. To demonstrate the existence of the higher-order topological phases, we characterize the topological properties and show that the co
Publikováno v:
Physical Review Research. 2
The authors propose that the quantized Berry phase serves as a many-body topological invariant that characterizes the higher-order symmetry-protected topological phases in two- and three-dimensions, and provides a clear insight of bulk-corner corresp
Higher-order topological insulators have attracted considerable interests as a novel topological phase of matter, where topologically non-trivial nature of bulk protects boundary states whose co-dimension is larger than one. It has been revealed that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f5c7fe2d282f68d7f4bdbc1d1ab7fd6
http://arxiv.org/abs/1906.07928
http://arxiv.org/abs/1906.07928
A higher-order topological insulator is a new concept of topological states of matter, which is characterized by the emergent boundary states whose dimensionality is lower by more than two compared with that of the bulk, and draws a considerable inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7fcd8804421e01789f20de07b1d257d
http://arxiv.org/abs/1809.09865
http://arxiv.org/abs/1809.09865
Publikováno v:
Journal of the Physical Society of Japan; 5/15/2021, Vol. 90 Issue 5, p1-5, 5p
We propose characterization of the three-dimensional topological insulator by using the Chern number for the entanglement Hamiltonian (entanglement Chern number). Here we take the extensive spin partition of the system, that pulls out the quantum ent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4f4b3e7c3ae789bbec00654a0888874
Publikováno v:
Journal of the Physical Society of Japan; 2019, Vol. 88 Issue 10, p104703-1-104703-7, 7p
Publikováno v:
Journal of the Physical Society of Japan; 2016, Vol. 85 Issue 4, p043706-1-043706-4, 4p