78 citations · 261 across the 14 of their papers we have counts for
3 papers · 1 filter
Quantum Information-Assisted Complete Active Space Optimization (QICAS)
Lexin Ding, Stefan Knecht, Christian Schilling
Automated active space selection is arguably one of the most challenging and essential aspects of multiconfigurational methods. In this work we propose an effective quantum informa…
Refining the weighted subspace-search variational quantum eigensolver: compression of ansätze into a single pure state and optimization of weights
Cheng-Lin Hong, Luis Colmenarez, Lexin Ding +2
The weighted subspace-search variational quantum eigensolver (SSVQE) is a prominent algorithm for calculating excited-state properties of molecular quantum systems. In this work, w…
Physical Entanglement Between Localized Orbitals
Lexin Ding, Gesa Dünnweber, Christian Schilling
In [arXiv:2207.03377] the first closed formula of a faithful entanglement measure applicable to realistic electron systems has been derived. In the present work, we build on this k…