30 citations · 34 across the 9 of their papers we have counts for
9 papers
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…
Photoelectron spectroscopy with a resonant dichromatic field: Role of geometric phase
Evan Munaro-Langloÿs, Axel Stenquist, Jan Marcus Dahlström
We investigate geometric-phase control in resonantly driven two-level atoms exposed to near-degenerate dichromatic laser pulses. In contrast to conventional two-color schemes based…
Coherent phonon motions and ordered vacancy compound mediated quantum path interference in Cu-poor CuInGaSe (CIGS) with attosecond transient absorption
Hugo Laurell, Jonah R. Adelman, Elizaveta Yakovleva +7
In this study, coherent phonon motion is observed in bandgap excited CuInGaSe (CIGS) utilizing extreme ultraviolet (XUV) attosecond transient absorption spectro…
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…
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…
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…
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…
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…
Gauge-invariant absorption of light from a coherent superposition of states
Axel Stenquist, Felipe Zapata, Jan Marcus Dahlström
Absorption and emission of light is studied theoretically for excited atoms in coherent superposition of states subjected to isolated attosecond pulses in the extreme ultraviolet r…