activity
20232025
most citedWhich options exist for NISQ-friendly linear response formulations?

17 citations · 46 across the 6 of their papers we have counts for

collaborators

6 papers

physics.chem-ph2025

Orbital-Optimized Unitary Coupled Cluster for Indirect Nuclear Spin-Spin Coupling Constants within a Quantum Linear Response Framework

Juliane H. Fuglsbjerg, Peter Reinholdt, Erik Kjellgren +4

We present a quantum linear response (qLR) approach within an active-space framework for computing indirect nuclear spin-spin coupling constants, a key ingredient in NMR spectra pr…

quant-ph2025★ 1 cited

Hyperfine Coupling Constants on Quantum Computers: Performance, Errors, and Future Prospects

Phillip W. K. Jensen, Gustav Stausbøll Hedemark, Karl Michael Ziems +6

We present the first implementation and computation of electron spin resonance isotropic hyperfine coupling constants (HFCs) on quantum hardware. As illustrative test cases, we com…

quant-ph2024

Electric Field Gradient Calculations for Ice VIII and IX using Polarizable Embedding: A Comparative Study on Classical Computers and Quantum Simulators

Dániel Nagy, Peter Reinholdt, Phillip W. K. Jensen +7

We test the performance of the Polarizable Embedding Variational Quantum Eigensolver Self-Consistent-Field (PE-VQE-SCF) model for computing electric field gradients with comparison…

quant-ph2023★ 17 cited

Which options exist for NISQ-friendly linear response formulations?

Karl Michael Ziems, Erik Rosendahl Kjellgren, Peter Reinholdt +4

Linear response (LR) theory is a powerful tool in classic quantum chemistry crucial to understanding photo-induced processes in chemistry and biology. However, performing simulatio…

quant-ph2023★ 17 cited

Quantum Equation of Motion with Orbital Optimization for Computing Molecular Properties in Near-Term Quantum Computing

Phillip W. K. Jensen, Erik Rosendahl Kjellgren, Peter Reinholdt +4

Determining the properties of molecules and materials is one of the premier applications of quantum computing. A major question in the field is how to use imperfect near-term quant…

quant-ph2023★ 11 cited

The variational quantum eigensolver self-consistent field method within a polarizable embedded framework

Erik Rosendahl Kjellgren, Peter Reinholdt, Aaron Fitzpatrick +6

We formulate and implement the Variational Quantum Eigensolver Self Consistent Field (VQE-SCF) algorithm in combination with polarizable embedding (PE), thereby extending PE to the…