317 citations · 2.2k across the 59 of their papers we have counts for
5 papers · 1 filter
Atom-by-atom construction of attractors in a tunable finite size spin array
Alex Kolmus, Mikhail I. Katsnelson, Alexander A. Khajetoorians +1
We demonstrate that a two-dimensional finite and periodic array of Ising spins coupled via RKKY-like exchange can exhibit tunable magnetic states ranging from three distinct magnet…
Nonlinear Deconvolution by Sampling Biophysically Plausible Hemodynamic Models
Hans-Christian Ruiz-Euler, Jose R. Ferreira Marques, Hilbert J. Kappen
Non-invasive methods to measure brain activity are important to understand cognitive processes in the human brain. A prominent example is functional magnetic resonance imaging (fMR…
Consistent Adaptive Multiple Importance Sampling and Controlled Diffusions
Sep Thijssen, H. J. Kappen
Recent progress has been made with Adaptive Multiple Importance Sampling (AMIS) methods that show improvement in effective sample size. However, consistency for the AMIS estimator…
Effective Connectivity from Single Trial fMRI Data by Sampling Biologically Plausible Models
H. C. Ruiz-Euler, H. J. Kappen
The estimation of causal network architectures in the brain is fundamental for understanding cognitive information processes. However, access to the dynamic processes underlying co…
Learning quantum models from quantum or classical data
Hilbert J Kappen
In this paper, we address the problem how to represent a classical data distribution in a quantum system. The proposed method is to learn quantum Hamiltonian that is such that its…