3 papers
quant-ph2026
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
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…