107 citations · 516 across the 18 of their papers we have counts for
6 papers · 1 filter
Metal-insulator transition in a quantum wire driven by a modulated Rashba spin-orbit coupling
G. I. Japaridze, Henrik Johannesson, Alvaro Ferraz
We study the ground-state properties of electrons confined to a quantum wire and subject to a smoothly modulated Rashba spin-orbit coupling. When the period of the modulation becom…
The two-impurity Kondo model with spin-orbit interactions
David F. Mross, Henrik Johannesson
We study the two-impurity Kondo model (TIKM) in two dimensions with spin-orbit coupled conduction electrons. In the first part of the paper we analyze how spin-orbit interactions o…
Tunneling between edge states in a quantum spin Hall system
Anders Ström, Henrik Johannesson
We analyze a quantum spin Hall (QSH) device with a point contact connecting two of its edges. The contact supports a net spin tunneling current that can be probed experimentally vi…
Persistent currents through a quantum impurity: Protection through integrability
Johan Nilsson, H. -P. Eckle, Henrik Johannesson
We consider an integrable model of a one-dimensional mesoscopic ring with the conduction electrons coupled by a spin exchange to a magnetic impurity. A symmetry analysis based on a…
Enhanced Two-Channel Kondo Physics in a Quantum Box Device
Paata Kakashvili, Henrik Johannesson
We propose a design for a one-dimensional quantum box device where the charge fluctuations are described by an anisotropic two-channel Kondo model. The device consists of a quantum…
Kondo Impurity in a Mesoscopic Ring: Charge Persistent Current
H. -P. Eckle, H. Johannesson, C. A. Stafford
We study the influence of a magnetic impurity or ultrasmall quantum dot on the charge persistent current of a mesoscopic ring. The system consists of electrons in a one-dimensional…