148 citations · 668 across the 22 of their papers we have counts for
22 papers
Modular Cluster Circuits for the Variational Quantum Eigensolver
Seyed Ehsan Ghasempouri, Gerhard W. Dueck, Stijn De Baerdemacker
The variational quantum eigensolver (VQE) algorithm recently became a popular method to compute quantum chemical properties of molecules on noisy intermediate scale quantum (NISQ)…
Spin-constrained Hartree-Fock and the generator coordinate method for the 2-site Hubbard model
Stijn De Baerdemacker, Amir Ayati, Hugh G. A. Burton +3
We present a mathematical analysis of the spin-constrained Hartree-Fock solutions (CHF) of the 2-site Hubbard model. The analysis sheds light on the spin symmetry breaking process…
Functional regression clustering with multiple functional gene expressions
Susana Conde, Shahin Tavakoli, Daphne Ezer
Gene expression data is often collected in time series experiments, under different experimental conditions. There may be genes that have very different gene expression profiles ov…
Integrable spin-1/2 Richardson-Gaudin XYZ models in an arbitrary magnetic field
Pieter W. Claeys, Claude Dimo, Stijn De Baerdemacker +1
We establish the most general class of spin-1/2 integrable Richardson-Gaudin models including an arbitrary magnetic field, returning a fully anisotropic (XYZ) model. The restrictio…
Spin polarization through Floquet resonances in a driven central spin model
Pieter W. Claeys, Stijn De Baerdemacker, Omar El Araby +1
Adiabatically varying the driving frequency of a periodically-driven many-body quantum system can induce controlled transitions between resonant eigenstates of the time-averaged Ha…
A variational method for integrability-breaking Richardson-Gaudin models
Pieter W. Claeys, Jean-Sébastien Caux, Dimitri Van Neck +1
We present a variational method for approximating the ground state of spin models close to (Richardson-Gaudin) integrability. This is done by variationally optimizing eigenstates o…