activity
20152026
most citedOptimized auxiliary oscillators for the simulation of general open quantum systems

98 citations · 248 across the 9 of their papers we have counts for

collaborators

10 papers

quant-ph2026

A Practical Introduction to VQE: Methods, Challenges, and Applications in Physics and Chemistry

Jannis Ehrlich, Felix Rupprecht, Konstantin Lamp +6

The Variational Quantum Eigensolver (VQE) has become a central hybrid quantum-classical method for addressing electronic structure and materials science problems on near-term quant…

quant-ph2026

Optimizing Subspace Expansion in Quantum Chemistry through Operator Selection and Reference State Choice

Konstantin Lamp, Alejandro D. Somoza, Elias Walter +4

The Virtual Quantum Subspace Expansion (VQSE) extends the Variational Quantum Eigensolver (VQE) by leveraging additional measurements on the reference state to capture the influenc…

quant-ph2025★ 1 cited

Simulating Electron Transfer on Noisy Quantum Computers

Marvin Gajewski, Alejandro D. Somoza, Gary Schmiedinghoff +3

While simple spin-boson models have been realized on quantum hardware, simulating extended electronic networks with local vibrational environments remains a fundamental challenge i…

quant-ph2024★ 30 cited

Nonlinear dynamics as a ground-state solution on quantum computers

Albert J. Pool, Alejandro D. Somoza, Conor Mc Keever +2

For the solution of time-dependent nonlinear differential equations, we present variational quantum algorithms (VQAs) that encode both space and time in qubit registers. The spacet…

cond-mat.mes-hall2022

Driving Force and Nonequilibrium Vibronic Dynamics in Charge Separation of Strongly Bound Electron-Hole Pairs

Alejandro D. Somoza, Nicola Lorenzoni, James Lim +2

Electron-hole pairs in organic photovoltaics dissociate efficiently despite their Coulomb-binding energy exceeding thermal energy at room temperature. The electronic states involve…

quant-ph2019★ 80 cited

Dissipation-assisted matrix product factorization

Alejandro D. Somoza, Oliver Marty, James Lim +2

Charge and energy transfer in biological and synthetic organic materials are strongly influenced by the coupling of electronic states to high-frequency underdamped vibrations under…