209 citations · 1.5k across the 69 of their papers we have counts for
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Generalized bulk-edge correspondence for non-hermitian topological systems
Ken-Ichiro Imura, Yositake Takane
A modified periodic boundary condition adequate for non-hermitian topological systems is proposed. Under this boundary condition a topological number characterizing the system is d…
Persistent current due to a screw dislocation in Weyl semimetals: Role of one-dimensional chiral states
Kentaro Kodama, Yositake Takane
A Weyl semimetal pierced by a screw dislocation accommodates one-dimensional (1D) chiral states along the corresponding dislocation line. As these states propagate in a particular…
Spontaneous charge current in a doped Weyl semimetal
Yositake Takane
A Weyl semimetal hosts low-energy chiral surface states, which appear to connect a pair of Weyl nodes in reciprocal space. As these chiral surface states propagate in a given direc…
Gauge-invariant cutoff for Dirac electron systems with a vector potential
Yositake Takane
The continuum Dirac model with an unbounded energy spectrum is widely used to describe low-energy states in various electron systems, such as graphene, topological insulators, and…
Regularized continuum model of a Weyl semimetal for describing anomalous electromagnetic response
Yositake Takane
Although the Weyl model with an unbounded linear energy spectrum appropriately describes low-energy electron states in a Weyl semimetal, it cannot capture the anomalous electromagn…