34 citations · 130 across the 8 of their papers we have counts for
8 papers
Curvature-induced valley-dependent spin-orbit interaction
A. Yamakage, T. Sato, R. Okuyama +5
We construct a general theoretical framework for describing curvature-induced spin-orbit interactions on the basis of group theory. Our theory can systematically determine the emer…
Topological classification of the single-wall carbon nanotube
Rin Okuyama, Wataru Izumida, Mikio Eto
The single-wall carbon nanotube (SWNT) can be a one-dimensional topological insulator, which is characterized by a -topological invariant, winding number. Using the ana…
Topological Phase Transition in Metallic Single-Wall Carbon Nanotube
Rin Okuyama, Wataru Izumida, Mikio Eto
The topological phase transition is theoretically studied in a metallic single-wall carbon nanotube (SWNT) by applying a magnetic field parallel to the tube. The t…
Angular momentum and topology in semiconducting single-wall carbon nanotubes
W. Izumida, R. Okuyama, A. Yamakage +1
Semiconducting single-wall carbon nanotubes are classified into two types by means of orbital angular momentum of valley state, which is useful to study their low energy electronic…
Valley coupling in finite-length metallic single-wall carbon nanotubes
W. Izumida, R. Okuyama, R. Saito
Degeneracy of discrete energy levels of finite-length, metallic single-wall carbon nanotubes depends on type of nanotubes, boundary condition, length of nanotubes and spin-orbit in…
Lasing and antibunching of optical phonons in semiconductor double quantum dots
Rin Okuyama, Mikio Eto, Tobias Brandes
We theoretically propose optical phonon lasing in a double quantum dot (DQD) fabricated on a semiconductor substrate. No additional cavity or resonator is required. An electron in…
Optical Phonon Lasing in Semiconductor Double Quantum Dots
Rin Okuyama, Mikio Eto, Tobias Brandes
We propose optical phonon lasing for a double quantum dot (DQD) fabricated in a semiconductor substrate. We show that the DQD is weakly coupled to only two LO phonon modes that act…
Optical Aharonov-Bohm Effect on Wigner Molecules in Type-II Semiconductor Quantum Dots
Rin Okuyama, Mikio Eto, Hiroyuki Hyuga
We theoretically examine the magnetoluminescence from a trion and a biexciton in a type-II semiconductor quantum dot, in which holes are confined inside the quantum dot and electro…