168 citations · 441 across the 11 of their papers we have counts for
13 papers
Numerical Analysis of Optimized Coherent Control Pulses
P. Karbach, S. Pasini, G. S. Uhrig
Numerically we simulate the effect of optimized coherent control pulses with a finite duration on a qubit in a bath of spins. The pulses of finite duration are compared with ideal…
Exact Results on Dynamical Decoupling by -Pulses in Quantum Information Processes
Götz S. Uhrig
The aim of dynamical decoupling consists in the suppression of decoherence by appropriate coherent control of a quantum register. Effectively, the interaction with the environment…
Optimization of Short Coherent Control Pulses
S. Pasini, T. Fischer, P. Karbach +1
The coherent control of small quantum system is considered. For a two-level system coupled to an arbitrary bath we consider a pulse of finite duration. We derive the leading and th…
Two-Dimensionality of Magnetic Excitations on the Trellis Lattice: (La,Sr,Ca)CuO and SrCuO
K. P. Schmidt, G. S. Uhrig
We explore the properties of magnetic excitations on the trellis lattice which is relevant for the so-called telephone-number compounds ACuO and the system SrC…
Electron spectra close to a metal-to-insulator transition
Michal Karski, Carsten Raas, Götz S. Uhrig
A high-resolution investigation of the electron spectra close to the metal-to-insulator transition in dynamic mean-field theory is presented. An all-numerical, consistent confirmat…
Magnetic Excitations in Bilayer High-Temperature Superconductors with Stripe Correlations
G. S. Uhrig, K. P. Schmidt, M. Grüninger
The universal behaviour of the magnetic excitations in high-temperature superconductors is described in a model with static stripes retaining only the localized spin degrees of fre…