activity
20102026
most citedProbing single-photon ionization on the attosecond time scale

616 citations · 2.3k across the 41 of their papers we have counts for

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10 papers · 1 filter

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-ph2026

Reconciliation of effective Hamiltonians for intense light-matter interaction

Jakob Nicolai Bruhnke, Jan Marcus Dahlström

Essential-state models are central for quantum control and technology in broad regimes of light-matter interaction. The canonical effective Hamiltonian is obtained equivalently fro…

quant-ph2025★ 4 cited

Coherent control of ionization via stabilization by resonant pulse pairs

Edvin Olofsson, Evan Lovelle Fulton, Rezvan Tahouri +3

We study the nonlinear and resonant process of two-photon ionization of atoms (He and H) in a pump-probe scheme. The pump pulse prepares the quantum system in a superposition of th…

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-ph2024

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…

quant-ph2024

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-ph2023★ 30 cited

Generation of entanglement using a short-wavelength seeded free-electron laser

Saikat Nandi, Axel Stenquist, Asimina Papoulia +25

Quantum entanglement between the degrees of freedom encountered in the classical world is challenging to observe due to the surrounding environment. To elucidate this issue, we inv…

quant-ph2022★ 107 cited

Studying ultrafast Rabi dynamics with a short-wavelength seeded free-electron laser

Saikat Nandi, Edvin Olofsson, Mattias Bertolino +26

Rabi oscillations are periodic modulations of populations in two-level systems interacting with a time-varying field. They are ubiquitous in physics with applications in different…

quant-ph2020★ 32 cited

Noise Free On-Demand Atomic Frequency Comb Quantum Memory

Sebastian P. Horvath, Mohammed K. Alqedra, Adam Kinos +4

We present an extension of the atomic frequency comb protocol that utilizes the Stark effect to perform noise-free, on-demand, control. An experimental realization of this protocol…

quant-ph2011★ 58 cited

Quantum mechanical approach to probing the birth of attosecond pulses using a two-color field

J. M. Dahlström, A. L'Huillier, J. Mauritsson

We investigate the generation of even and odd harmonics using an intense laser and a weak second harmonic field. Our theoretical approach is based on solving the saddle-point equat…