107 citations · 572 across the 21 of their papers we have counts for
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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…
Local Spectral Weight of a Luttinger Liquid: Effects from Edges and Impurities
Paata Kakashvili, Henrik Johannesson, Sebastian Eggert
We calculate the finite-temperature local spectral weight (LSW) of a Luttinger liquid with an "open" (hard wall) boundary. Close to the boundary the LSW exhibits characteristic osc…
Boundary Green's Function for Spin-Incoherent Interacting Electrons in One Dimension
Paata Kakashvili, Henrik Johannesson
The spin-incoherent regime of one-dimensional electrons has recently been explored using the Bethe ansatz and a bosonized path integral approach, revealing that the spin incoherenc…
Single-Site Entanglement of Fermions at a Quantum Phase Transition
Daniel Larsson, Henrik Johannesson
We show that the single-site entanglement of a generic spin-1/2 fermionic lattice system can be used as a reliable marker of a finite-order quantum phase transition, given certain…
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…