activity
20222026
most citedFirst-Principles Simulations of Tip Enhanced Raman Scattering Reveal Active Role of Substrate on High-Resolution Images

16 citations · 18 across the 4 of their papers we have counts for

collaborators

5 papers

physics.optics2026

High-order correlations and ultrafast Wigner negativities in bright-squeezed-vacuum-driven high-harmonic generation

Sebastián de-la-Peña, Heiko Appel, Marcelo F. Ciappina +2

High-harmonic generation (HHG) is a prototypical strong-field process in which intense light drives matter to emit radiation at integer multiples of the driving frequency. Extendin…

quant-ph2025

Second-quantized numerical simulations of tunable entanglement in quantum high harmonic generation

Sebastián de-la-Peña, Heiko Appel, Angel Rubio +1

Quantum high-harmonic generation (HHG) is a prominent and growing field of research with potential capabilities of providing high photon-number entangled states of light. However,…

quant-ph2025

Hardware-efficient formulation of molecular cavity-QED Hamiltonians

Francesco Troisi, Simone Latini, Heiko Appel +3

Light-matter coupled Hamiltonians are central to cavity materials engineering and polaritonic chemistry, but are challenging to simulate with classical hardware due to the scaling…

physics.atom-ph2025★ 2 cited

High Harmonic Generation with Orbital Angular Momentum Beams: Beyond-dipole Corrections

Esra Ilke Albar, Valeriia P. Kosheleva, Heiko Appel +2

We study the high harmonic generation with vortex beams beyond the dipole approximation. To do so we employ the full minimal coupling approach to account for multipolar coupling wi…

physics.chem-ph2022★ 16 cited

First-Principles Simulations of Tip Enhanced Raman Scattering Reveal Active Role of Substrate on High-Resolution Images

Y. Litman, F. P. Bonafé, A. Akkoush +2

Tip-enhanced Raman scattering (TERS) has emerged as a powerful tool to obtain subnanometer spatial resolution fingerprints of atomic motion. Theoretical calculations that can simul…