4 citations · 6 across the 11 of their papers we have counts for
13 papers
Classical Active-Space Hybrid Quantum Subspace Expansion (CASH-QSE): Quantum Corrections without Remeasuring the Classically Calculable Energy
Artur F. Izmaylov
The wave function prepared by a variational quantum eigensolver (VQE) can contain a substantial classically tractable component, yet its energy contribution is sampled on the quant…
Resource-efficient energy-based operator selection in fermionic ADAPT-VQE via exact Hamiltonian transformation
Emanuele Rossi, Erik Rosendahl Kjellgren, Artur F. Izmaylov +3
The energy-based approach to operator selection in ADAPT-VQE relies on reconstructing the one-parameter energy landscape for each operator in the pool. In fermionic implementations…
Quantum algorithm for simulating resonant inelastic X-ray scattering in battery materials
Ignacio Loaiza, Alexander Kunitsa, Stepan Fomichev +9
Resonant inelastic X-ray scattering (RIXS) is the workhorse experimental technique for probing the structural degradation of higher-capacity cathode materials. However, the interpr…
Accuracy and resource advantages of quantum eigenvalue estimation with non-Hermitian transcorrelated electronic Hamiltonians
Alexey Uvarov, Artur F. Izmaylov
In electronic structure calculations, the transcorrelated method consists in transforming the Hamiltonian so as to remove the Coulomb cusp in its eigenfunctions. As a result, the w…
Exact Factorization of Unitary Transformations with Spin-Adapted Generators
Paarth Jain, Artur F. Izmaylov, Erik R. Kjellgren
Preserving spin symmetry in variational quantum algorithms is essential for producing physically meaningful electronic wavefunctions. Implementing spin-adapted transformations on q…
On the Feasibility of Exact Unitary Transformations for Many-body Hamiltonians
Praveen Jayakumar, Tao Zeng, Artur F. Izmaylov
Exact unitary transformations play a central role in the analysis and simulation of many-body quantum systems, yet the conditions under which they can be carried out exactly and ef…