92 citations · 260 across the 4 of their papers we have counts for
4 papers
Measurement of the Tip-Induced Potential in Scanning Gate Experiments
A. E. Gildemeister, T. Ihn, M. Sigrist +3
We present a detailed experimental study on the electrostatic interaction between a quantum dot and the metallic tip of a scanning force microscope. Our method allowed us to quanti…
Numerical renormalization-group study of spin correlations in one-dimensional random spin chains
T. Hikihara, A. Furusaki, M. Sigrist
We calculate the ground-state two-spin correlation functions of spin-1/2 quantum Heisenberg chains with random exchange couplings using the real-space renormalization group scheme.…
The Low-Energy Fixed Points of Random Quantum Spin Chains
E. Westerberg, A. Furusaki, M. Sigrist +1
The one-dimensional isotropic quantum Heisenberg spin systems with random couplings and random spin sizes are investigated using a real-space renormalization group scheme. It is de…
Low-Temperature Properties of the Randomly Depleted Heisenberg Ladder
M. Sigrist, A. Furusaki
Low-temperature thermodynamic properties of the spin-1/2 Heisenberg ladder system with non-magnetic impurities are discussed using an effective Hamiltonian for the impurity-induced…