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We have observed and investigated random telegraph noise in the photoluminescence from InAs quantum dots in GaAs. The luminescence from a single quantum dot, exhibiting switching between two levels, has been spectrally resolved. The random telegraph noise is only observed in the presence of band filling. We find no spectral shift of the emission in the different states. It is only the intensity, m
I vår grupp är vi intresserade av hur åldrande och åldersrelaterade sjukdomar påverkar hjärnans olika celler och hur vi kan använda stamceller för att studera och behandla sjukdomar i hjärnan. Vi använder oss av av nyskapande stamcells, reprogrammerings och genmodiferande teknologier för att studera hur genetiska processer involverade i åldrande och neurodegenerativa sjukdomar påverkar bildandet In our group we are interested in how aging and neurodegenerative diseases affect the brain, neural cells and neural stem cells. Using novel stem cell, reprogramming and genome editing technologies we are studying how genetic pathways involved in aging and neurodegenerative disease affect formation and function of neural cells. We also have a strong interest in basic stem cell biology with a clear
The Sustainable Production Initiative is a concerted action by Chalmers University and Lund University to produce leading edge knowledge for sustainable production excellence.
We are developing new ideas within materials, manufacturing and recycling in close collaboration with industry. Our aim is to find solutions that are both environmentally friendly and make companies more competitive. I
Solubility of amyloid beta peptide as a function of intrinsic and extrinsic factors You will investigate the solubility of amyloid β peptide and the influence of intrinsic and extrinsic factors, in particular surfaces in the form of nanoparticles and phospholipid membranes, and cosolutes. The ultimate goal is to understand whether the reduced solubility apparent in Alzheimer's disease is a cause o
https://www.nano.lu.se/phd-project-solubility-amyloid-b-peptide - 2026-07-15
This manuscript describes harmonic generation in semiconductor superlattices, starting from a nonequilibrium Green's functions input to relaxation rate-type analytical approximations for the Boltzmann equation in which imperfections in the structure lead to asymmetric current flow and scattering processes under forward and reverse bias. The resulting current-voltage curves and the predicted conseq
Background and Purpose: In magnetic resonance imaging (MRI) only radiotherapy computed tomography (CT) is excluded. The method relies entirely on synthetic CT images generated from MRI. This study evaluates the compatibility of a commercial synthetic CT (sCT) with an accelerated commercial deep learning reconstruction (DLR) in MRI-only prostate radiotherapy. Materials and Methods: For a group of 2
In this study, data of the generation of recyclable wastes from the EU member states, and possible explaining factors for describing this generation, are examined through a combination of Probabilistic Principal Component Analysis (PPCA) and multivariate regression analysis. The purpose is to identify some of the biggest contributors to the generation of recyclable wastes, and, based on these cont
A 3D unit cell has been simulated numerically using a commercial software in order to evaluate and quantify various water related phenomena, i.e., electro-osmotic drag, back diffusion, electro-chemical water generation and the saturation effects in the porous media. The water saturation effects were noticed to be more pronounced in the GDL of the cathode as compared to the catalyst layer due to gr
Locomotion control in mammals has been hypothesized to be governed by a central pattern generator (CPG) located in the circuitry of the spinal cord. The most common model of the CPG is the half center model, where two pools of neurons generate alternating, oscillatory activity. In this model, the pools reciprocally inhibit each other ensuring alternating activity. There is experimental support for
Absorption refrigerators are autonomous thermal machines that harness the spontaneous flow of heat from a hot bath into the environment in order to perform cooling. Here we discuss quantum realizations of absorption refrigerators in two different settings: namely, cavity and circuit quantum electrodynamics. We first provide a unified description of these machines in terms of the concept of virtual
Doctoral programmes (PhD programmes) are offered by all six departments at the Lund University School of Economics and Management. It is often given in collaboration with other parts of Lund University or with other institutions in Sweden. Application and admissionFinancing your doctoral studiesAwards for best doctoral thesesQuality assurance in research educationLatest finished Doctoral student p
https://www.lusem.lu.se/research/doctoral-studies - 2026-07-15
Spectral imaging and lidar methods for the characterization of vegetation are vital for understanding plants and, in turn, food security, biodiversity, and vegetation health in a changing climate. While novel hyperspectral imaging, canopy lidar,and solar-induced fluorescence provide details on species, state, structure, and plant physiology, such data come from different instruments. Thus, post-pr
The authors present fabrication and electrical measurements of InSb nanowire field-effect transistors (FETs) and quantum dots. The devices are made on a SiO2-capped Si substrate from InSb segments of InAs/InSb heterostructured nanowires, which are grown by metalorganic vapor phase epitaxy. For the FETs, both single- and dual-gate devices are fabricated. The Si substrate is employed as the back gat
We report on magnetotransport measurements on InSb nanowire quantum dots. The measurements show that the quantum levels of the InSb quantum dots have giant g factors, with absolute values up to approximately 70, the largest value ever reported for semiconductor quantum dots. We also observe that the values of these g factors are quantum level dependent and can differ strongly between different qua
