Sökresultat

This dissertation investigates theoretically electric control of the magnetic properties of molecular magnets. Two classes of magnetic molecules are considered. The first class consists of molecules that are spin frustrated. As a consequence of the frustration, the ground-state manifold of these molecules is characterized by states of different spin chirality, which can be coupled by an external e

https://www.lu.se/studera/konstnarligt-masterprogram-i-fri-konst-KAFKO - 2026-09-08

11 mars 2026 12:00 till 13:00 | Seminarium You fine a recording of this seminar on ai.lu.se,Topic: Neuromorphic technology – Rethinking the computer for AIWhen: 11 March, 2026 12.00 to 13.00 CETWhere: OnlineSpeakers: Mattias Borg, Electromagnetics and Nanoelectronics, Lund UniversityBaktash Behmanesh, Integrated Sensors and Adaptive Technology for Sustainable Products and Manufacturing, Lund Unive

https://www.lu.se/evenemang/ai-lund-lunch-seminar-neuromorphic-technology-rethinking-computer-ai - 2026-09-08

https://www.lu.se/studera/arkitektur-masterutbildning-TAMAR - 2026-09-08

https://www.lu.se/studera/kemi-syntetisk-och-analytisk-kemi-masterprogram-NAKEM-SAKE - 2026-09-08

30 januari 2026 12:15 till 13:00 | Seminarium Human Rights Lunch Online is a digital seminar series where Human Rights Profile Area members and guests present their latest projects and research. On 30 January, Martin Scheinin, visiting professor at the Faculty of Law and previous United Nations Special Rapporteur on human rights and counter-terrorism (2005–2011), will present on the rights of futu

https://www.medarbetarwebben.lu.se/evenemang/human-rights-lunch-online-rights-future-generations-questions-law-politics-and-morality - 2026-09-08

https://www.lu.se/studera/logistik-och-styrning-av-forsorjningskedjor-masterutbildning-TALSF - 2026-09-08

https://www.lu.se/studera/historiska-studier-historia-masterprogram-HAHII-HIST - 2026-09-08

We study the role of propagation effects in high-order harmonic-generation experiments. The phase-matching integrals are calculated in the weak-field limit by taking into account the dispersion of the rare-gas medium at each harmonic frequency and the absorption of the harmonics. The refractive indices of the rare gases are deduced from a calculation of the dynamic polarizabilities within the fram

https://www.lu.se/studera/vattenresurshantering-masterutbildning-TAWRE - 2026-09-08

https://www.lu.se/studera/historiska-studier-ide-och-lardomshistoria-masterprogram-HAHII-ILHI - 2026-09-08

We calculate the phase property of the reflection coefficient in two-terminal structures using a lattice tight-binding model. It is seen that, provided that there exist two coherent reflection paths, the reflection probability can be zero for certain electron energies. At these energies, the phase of the reflection coefficient shift abruptly by $pi$. Next, we study the reflection and transmissio

https://www.lu.se/studera/fotonik-masterutbildning-TAFOT - 2026-09-08

heory predicts that electrons emitted from independent electron sources (metallic contacts) can nevertheless interfere. This interference is manifest in an exchange contribution to the shot noise correlation of currents at different contacts of a mesoscopic conductor. A geometry has been proposed in which second order (single particle) interference due to superposition of amplitudes is absent but

Different screening models in quantum cascade lasers are compared by calculating the contribution of intrasubband impurity scattering to the optical linewidth as a function of temperature. We find a strong impact of impurity scattering, which increases substantially with temperature. A simple isotropic bulk screening model works well if the screening length is of the order of or longer than the pe

In particle collider experiments, elementary particle interactions with large momentum transfer produce quarks and gluons (known as partons) whose evolution is governed by the strong force, as described by the theory of quantum chromodynamics (QCD)1. These partons subsequently emit further partons in a process that can be described as a parton shower2, which culminates in the formation of detectab

Abstract: We study oscillations in quantum cascade lasers due to traveling electric field domains, which are observed both in simulations and experiments. These oscillations occur in a range of negative differential resistance and we clarify the condition determining whether the boundary between domains of different electric field can become stationary. Graphical abstract: [Figure not available: s

We consider an autonomous implementation of Maxwell's demon in a quantum dot architecture acting on a system without changing its number of particles or its energy. As in the original thought experiment, only the second law of thermodynamics is seemingly violated when disregarding the demon. The autonomous architecture allows us to compare descriptions in terms of information to a more traditional

We show that mid-infrared transmission spectroscopy of a quantum cascade laser provides clear-cut information on changes in charge location at different bias. Theoretical simulations of the evolution of the gain/absorption spectrum for a lambda~7.4 µm InGaAs/AlInAs/InP quantum cascade laser have been compared with the experimental findings. Transfer of electrons between the ground states in the ac