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quant-ph2026

Coherent Control of Quantum and Classical Correlations in Photoionization

Axel Stenquist, Jan Marcus Dahlström

The ability to control quantum correlations in strongly driven systems is a central challenge across quantum science, with implications for ultrafast dynamics, quantum control, and…

quant-ph2025

Entanglement Transfer in a Composite Electron-Ion-Photon System

Axel Stenquist, Jakob Nicolai Bruhnke, Felipe Zapata +1

We study how entanglement in photoionization is transferred from an electron-ion pair to an electron-photon pair by fluorescence. Time-resolved von Neumann entropies are used to es…

quant-ph2025

Mollow-like triplets in ultra-fast resonant absorption

Axel Stenquist, Felipe Zapata, Edvin Olofsson +5

We show that resonant absorption of smooth laser fields can yield Mollow-like triplet patterns. General conditions for such triplets are derived and illustrated with a super-Gaussi…

quant-ph2025

Giant counter-rotating oscillations on the attosecond timescale

Jakob Nicolai Bruhnke, Edvin Olofsson, Axel Stenquist +1

We predict an unexplored type of ultrastrong coupling between atoms and intense ultraviolet light that leads to giant population oscillations on the attosecond timescale. These cou…

quant-ph2025

Harnessing Time Symmetry to Fundamentally Alter Entanglement in Photoionization

Axel Stenquist, Jan Marcus Dahlström

The Grobe--Eberly doublet phenomenon occurs in photoelectron distributions when a field dresses the remaining ion. Its manifestation is due to entanglement between a free electron…