699 citations · 1.3k across the 39 of their papers we have counts for
6 papers · 2 filters
EQC : Ensembled Quantum Computing for Variational Quantum Algorithms
Samuel Stein, Yufei Ding, Nathan Wiebe +5
Variational quantum algorithm (VQA), which is comprised of a classical optimizer and a parameterized quantum circuit, emerges as one of the most promising approaches for harvesting…
Coupled Cluster Downfolding Theory: towards efficient many-body algorithms for dimensionality reduction of composite quantum systems
Nicholas P. Bauman, Karol Kowalski
The recently introduced coupled cluster (CC) downfolding techniques for reducing the dimensionality of quantum many-body problems recast the CC formalism in the form of the renorma…
Coupled Cluster Downfolding Methods: the effect of double commutator terms on the accuracy of ground-state energies
Nicholas P. Bauman, Karol Kowalski
Downfolding coupled cluster (CC) techniques have recently been introduced into quantum chemistry as a tool for the dimensionality reduction of the many-body quantum problem. As opp…
Hybrid quantum-classical approach for coupled-cluster Green's function theory
Trevor Keen, Bo Peng, Karol Kowalski +2
The three key elements of a quantum simulation are state preparation, time evolution, and measurement. While the complexity scaling of time evolution and measurements are well know…
Dimensionality reduction of many-body problem using coupled-cluster sub-system flow equations: classical and quantum computing perspective
Karol Kowalski
We discuss reduced-scaling strategies employing recently introduced sub-system embedding sub-algebras coupled-cluster formalism (SES-CC) to describe many-body systems. These strate…
Variational quantum solver employing the PDS energy functional
Bo Peng, Karol Kowalski
Recently a new class of quantum algorithms that are based on the quantum computation of the connected moment expansion has been reported to find the ground and excited state energi…