Christian Lange

Jul 2, 2024 | mdpi.com | Vera Himmelsbach |Matthias Jeschke |Christian Lange |Bernhard Scheiner

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Jun 3, 2024 | link.aps.org | Christian Lange |Thomas Hansen |Lars Bojer Madsen

The spectra produced by high-order harmonic generation (HHG) typically exhibit well-defined peaks at odd integers times the laser frequency. However, in recent investigations of HHG from correlated materials, spectra exhibit signals at noninteger harmonics which do not conform to the well-known symmetry-based selection rules for HHG spectra. Here, we use the Fermi-Hubbard model to study HHG from a linear chain of atoms.

May 28, 2024 | mobygames.com | Christian Lange

Project Visitor is, at its heart, a hybrid MMO game with both FPS and RTS characteristics. At the time of the initial release they were called PSWs (Persistent State Worlds) where later on most MMO games are PSC (Persistent State Characters) where essentially only the player's character changes and is saved. In Project Visitor you build the world around you, you attack others and the lands they have built and the whole world is saved to the database.

Mar 15, 2024 | link.aps.org | Christian Lange |Thomas Hansen |Lars Bojer Madsen

We study the effect of electron-electron correlations on the quantum state of the light emitted from high-harmonic generation (HHG). The quantum state of the emitted light is obtained by using a fully quantum-mechanical description of both the optical modes as well as the electronic system. This is different from the usual semiclassical description of HHG, which only treats the electronic target system quantum mechanically.

Feb 19, 2024 | nature.com | Christian Lange |Emma Daggett |Valentin Walther |Libai Huang

AbstractAn array of radiatively coupled emitters provides a platform for generating, storing and manipulating quantum light. However, the simultaneous positioning and tuning of several lifetime-limited emitters into resonance remains a challenge. Here we report the creation of superradiant and subradiant entangled states in pairs of lifetime-limited and subwavelength-spaced organic molecules by permanently shifting them into resonance with laser-induced tuning.