Simulating the electronic structure of spin defects on quantum computers

B Huang, M Govoni, G Galli - PRX Quantum, 2022 - APS
We present calculations of both the ground-and excited-state energies of spin defects in
solids carried out on a quantum computer, using a hybrid classical-quantum protocol. We …

Toward Accurate Calculation of Excitation Energies on Quantum Computers with ΔADAPT-VQE: A Case Study of BODIPY Derivatives

A Nykänen, L Thiessen, EM Borrelli… - The Journal of …, 2024 - ACS Publications
Quantum chemistry simulations offer a cost-effective way to computationally design BODIPY
photosensitizers. However, accurate predictions of excitation energies pose a challenge for …

Quantum simulations of fermionic hamiltonians with efficient encoding and ansatz schemes

B Huang, N Sheng, M Govoni… - Journal of Chemical Theory …, 2023 - ACS Publications
We propose a computational protocol for quantum simulations of fermionic Hamiltonians on
a quantum computer, enabling calculations on spin defect systems which were previously …

Two Algorithms for Excited-State Quantum Solvers: Theory and Application to EOM-UCCSD

Y Kim, AI Krylov - The Journal of Physical Chemistry A, 2023 - ACS Publications
Near-term quantum devices promise to revolutionize quantum chemistry, but simulations
using the current noisy intermediate-scale quantum (NISQ) devices are not practical due to …

A new “gold standard”: Perturbative triples corrections in unitary coupled cluster theory and prospects for quantum computing

ZW Windom, D Claudino, RJ Bartlett - The Journal of Chemical Physics, 2024 - pubs.aip.org
A major difficulty in quantum simulation is the adequate treatment of a large collection of
entangled particles, synonymous with electron correlation in electronic structure theory, with …

Quadratic unitary coupled-cluster singles and doubles scheme: Efficient implementation, benchmark study, and formulation of an extended version

J Liu, DA Matthews, L Cheng - Journal of Chemical Theory and …, 2022 - ACS Publications
An efficient implementation of the quadratic unitary coupled-cluster singles and doubles
(qUCCSD) scheme for calculations of electronic ground and excited states using an …

A reduced cost four-component relativistic unitary coupled cluster method for atoms and molecules

K Majee, S Chakraborty, T Mukhopadhyay… - The Journal of …, 2024 - pubs.aip.org
We present a four-component relativistic unitary coupled cluster method for atoms and
molecules. We have used commutator-based non-perturbative approximation using the …

ADAPT-VQE: Toward Accurate Calculation of Excitation Energies on Quantum Computers for BODIPY Molecules With Application in Photodynamic Therapy

A Nykänen, L Thiessen, EM Borrelli, V Krishna… - arXiv preprint arXiv …, 2024 - arxiv.org
Quantum chemistry simulations offer a cost-effective way for computational design of
BODIPY photosensitizers with potential use in photodynamic therapy (PDT). However …

Automated Quantum Chemistry Code Generation with the pq Package

MD Liebenthal, SH Yuwono, LN Koulias, RR Li… - arXiv preprint arXiv …, 2025 - arxiv.org
This article summarizes recent updates to the p $^\dagger $ q package, which is a C++
accelerated Python library for generating equations and computer code corresponding to …

A Reduced Cost Four-Component Relativistic Unitary Coupled Cluster Method for Molecules

K Majee, T Mukhopadhyay, MK Nayak… - arXiv preprint arXiv …, 2024 - arxiv.org
We present a four-component relativistic unitary coupled cluster method for molecules. We
have used commutator-based non-perturbative approximation using the''Bernoulli …