24 Postdoctoral Fellowship at University of Hamburg, Germany

A university degree in a relevant field plus doctorate.

She/he will be ideally chemist, physicist or nanoscientist by trainee and advanced user of scanning coherent X-Ray microscopy (ptychography). Further requirements: Good understanding of solid-state physics, proven experience with scanning X-Ray microscopy methods, excellent programming skills (Phyton, C++, CUDA) good communication and self-management skills. PHD in the relevant field and experience with inorganic nanoparticle synthesis in solution and their characterization is a strong plus. Excellent communication in English is necessary.

Duties include academic services in the project named above. Research associates may also pursue independent research and further academic qualifications. They may also pursue doctoral studies outside of working duties.

The TRR 181 is a DFG (German Research Foundation) funded collaborative research center that involves several German universities and research institutes and aims at better understanding and consistently representing energy transfers between different dynamical regimes in mathematical and numerical models (see https://www.trr-energytransfers.de). The subproject W4 investigates energetically consistent parameterizations of wave-induced turbulent mixing in ocean general circulation models, notably the IDEMIX (Internal wave Dissipation, Energy and MIXing) concept. Tasks specific to this position include (a) the development of a computationally cheap simplified IDEMIX model to increase its usability, and (b) a thorough evaluation of the different IDEMIX versions with respect to the characteristics of the modelled wave field, the associated computational costs and the agreement with global scale observations. The successful candidate will be part of the theoretical oceanography group at University of Hamburg, working under the supervision of Dr. Friederike Pollmann and Prof. Dr. Carsten Eden (University of Hamburg) and Prof. Dr. Dirk Olbers (University of Bremen and Alfred-Wegener-Institut für Polar- und Meereskunde). There will be strong collaboration with the experimental oceanographers at University of Bremen, notably with the other members of subproject W4, Dr. Christian Mertens and the other W4 candidate. The evaluation of IDEMIX in climate models will be performed in cooperation with the climate modelers at University of Bremen, Alfred-Wegener-Institute for Polar and Marine Research (Bremerhaven), and Max-Planck-Institute for Meteorology (Hamburg). The successful candidate will also be a member of the projects’ research training group ENERGY, which connects the participating universities and research institutes and provides dedicated training courses, ample opportunity for (international) networking and a mentoring program to support career development.

Duties include academic services in the project named above. Research associates may also pursue independent research and further academic qualifications. They may also pursue doctoral studies outside of working duties.

Duties include academic services in the TRR 181, a DFG funded collaborative research center that involves several German universities and research institutes and aims at better understanding and consistently representing energy transfers between different dynamical regimes in mathematical and numerical models (see website for more details https://www.trr-energytransfers.de/).

The subproject L5 applies and assesses the effect of the energetic mixing closure IDEMIX in climate states that are very different from today’s. While previous and ongoing work of L5 focuses on the past, we now aim to investigate an extreme future climate state without the Earth’s major ice sheets. By applying the internal wave model IDEMIX to consistently parameterize the wave-induced mixing, we want to analyze how the barotropic tidal current changes associated with ice sheet melt and sea level rise impact the internal tide generation, propagation, and dissipation. The successful candidate will be part of the theoretical oceanography group at Universität Hamburg, working under the supervision of Dr. Friederike Pollmann and Dr. Alexa Griesel as well as Prof. Dr. Carsten Eden. Collaboration with Dr. Sophie-Berenice Wilmes (Bangor University) is planned with a particular focus on the barotropic tidal modeling during these extreme climate states. The successful candidate will also be a member of the project’s research training group ENERGY, which connects the participating universities and research institutes and provides dedicated training courses, ample opportunity for (international) networking, and a mentoring program to support career development.

Research associates will be expected primarily to teach and conduct research. The research associate will also have the opportunity to pursue further academic qualifications, in particular a doctoral dissertation. At least one-third of set working hours will be made available for the research associate’s own academic work.

The research associate will examine Effects of acclimation, dispersal, and establishment on diversity patterns of mosses and lichens under climate change. These organisms are key for ecosystem functioning in many regions of the world, but mosses and lichens are seldom represented in process-based dynamic vegetation models (DGMVs) that are used for prediction of future vegetation patterns and functions at global scale. In particular, processes that may limit range shifts under climate change, such as dispersal and establishment, or mechanisms of acclimation to altered climate at the individual level, are missing in DGVMs.

The aim of this project is to estimate how these potentially limiting processes affect future distribution patterns of mosses and lichens, focusing on their functional diversity and the associated ecosystem functions. To this end, an established DGVM of mosses and lichens will be extended by mechanisms of dispersal, establishment and acclimation and evaluated by means of laboratory and small-scale field experiments.

The findings will not only provide new insights into the responses of mosses and lichens to climate change, but will also add new perspectives on the general advancement of DGVMs.

Required teaching associated with this position amounts to 2,5 LVS (course hours per week).

Duties include academic services in the project named above. Research associates may also pursue independent research and further academic qualifications. They may also pursue doctoral studies outside of working duties.

This project aims to understand the dynamics of the oceanic surface mixed layer. Within this layer, processes from different dynamical regimes (e.g., small-scale turbulence, submesoscales, and surface waves) generate a variety of energy transfer mechanisms. This position will focus on submesoscales, a recently discovered dynamical regime that is important for the energetics and dynamics of the surface layer but is currently poorly understood. The successful candidate will use a high-resolution numerical modeling approach and available observations to evaluate the model results. The candidate will be part of the “Theoretical Oceanography” working group and the Research Training Group “ENERGY” which offers dedicated training courses, seminars, mentoring, and, if desired, international research visits.

Duties include academic services in the project named above. Research associates may also pursue independent research and further academic qualifications.

 The development of serial crystallography at X-ray free-electron lasers gives opportunities to measure time-dependent structures of functioning photoactive macromolecules, in real time. This project aims to extend time-resolved crystallography capabilities, as well as ultrafast spectroscopic tools, and apply them to the investigation of the structure and dynamics of flavoenzymes.

Research associates will be expected primarily to teach and conduct research. The research associate will also have the opportunity to pursue further academic qualifications, in particular a doctoral dissertation. At least one-third of set working hours will be made available for the research associate’s own academic work.

This is a PhD position, intended to pursue doctoral studies in full-time with the goal to obtain a doctoral degree in natural sciences (‘Dr. rer nat.’). The position is located in the Department of Evolutionary Immunogenomics, and the successful candidate will be supervised and mentored by Prof. Tobias Lenz.

The department‘s primary research focus is the study of genetic variability in the adaptive immune system of vertebrates and its importance for disease susceptibility and co-evolution between hosts and their parasites. Special attention is given to important molecular and genetic components in the antigen-specific immune response (MHC/HLA, antigens, T cell receptors). The two main host model systems used in the department are humans and three-spined sticklebacks (Gasterosteus aculeatus). We use both experimental and molecular approaches (mainly with sticklebacks), and computational approaches (with both human and stickleback data) to improve our understanding of antigen-specific immunity and its role in complex diseases and fitness. The successful candidate will develop their own doctoral research projects within this context, under the guidance of their mentor. Several project ideas are available and can be tailored to the candidate’s interest and experience.

Research associates will be expected primarily to teach and conduct research. The research associate will also have the opportunity to pursue further academic qualifications, in particular a doctoral dissertation. At least one-third of set working hours will be made available for the research associate’s own academic work.

The Cluster of Excellence “Quantum Universe” performs research to understand mass and gravity at the interface between quantum physics and cosmology. The research team includes leading scientists from mathematics, particle physics, astrophysics, and cosmology at Universität Hamburg and DESY.

The duties of this position are related to the development commissioning and operation of an experiment for Dark Matter search.

The position is associated with the MADMAX experiment which involves R&D for a new experimental approach to search for axions with a mass around 100 μeV as favored by a class of theoretical models. The new approach makes use of magnetized dielectric media and dedicated RF antennas in the 1–100 GHz range. The position is specific to the commissioning and integration of the first MADMAX prototype in a cryostat, and the operation of an axion/ALPs search experiment in the SHELL laboratory in Hamburg, and in a magnetic field at the CERN SPS facility.

In the period from as soon as possible until 12/31/2025, duties primarily include teaching and research. Research associates may also pursue independent research and further academic qualifications.

In the period from 01/01/2026 for the remaining time, duties include academic services in the project named above. Research associates may also pursue independent research and further academic qualifications.

Spin systems are an intriguing breeding ground for exotic and topological quasiparticle excitations like anyons and quantum skyrmions. This project utilizes artificial neural networks to simulate the dynamics of topological excitations in spin systems and aims to find fast-time-scale coherent control of these quasiparticles, which has previously only been demonstrated on an adiabatic, i.e., infinitely slow, time scale. The project connects dynamics, topological excitations, and quantum machine learning as its three key aspects.

Your will be part of the research group on “Topology in Condensed Matter Systems” at the I. Institute of Theoretical Physics at University of Hamburg, see https://www.physik.uni-hamburg.de/en/th1/ag-posske.html.

Duties primarily include teaching and research. Research associates may also pursue independent research and further academic qualifications.

The successful candidate will be part of the working group „Atmospheric Turbulence and Boundary Layers“. Research topics for this position include, but are not restricted to, cloud-turbulence interaction, convection, stratified turbulence, near-surface turbulence, with a special focus on high-performance computing and exascale computing. This position also includes a teaching obligation of 4 hours per week.

Duties include academic services in the project named above. Research associates may also pursue independent research and further academic qualifications. They may also pursue doctoral studies outside of working duties.

In the framework of the Project, mainly semiconductor nanoparticles (perovskite type materials and others) will be syntezied by means of colloid chemistry. The synthesized nanoparticles will be deposited on appropriate substrates and their performance in solar cells will be examined. Exhaustive and sound optical characterization of the nanoparticles and additionaly electronic characterization of the produced solar cells will be performed.

The Cluster of Excellence “Quantum Universe” performs research to understand mass and gravity at the interface between quantum physics and cosmology. The research team includes leading scientists from mathematics, particle physics, astrophysics, and cosmology at Universität Hamburg and DESY.

You will be part of a novel research project which aims to detect gravitational waves with superconducting radio-frequency cavities. This research is carried out together with world-leading experts on superconducting cavities and RF control systems, and further benefits from the location of the world-wide largest superconducting accelerator on-site. Another vital part is the excellent theoretical research team, developing necessary models to describe the interactions of the cavity with gravitational waves and its environment. Together we design and specify the fundamental concept of the experiment, which will be carried out in the near-future. Besides the project team in Hamburg, we are closely collaborating with a research team at the Fermi National Accelerator Laboratory, where mutual visits are part of the project.

You will lead the study to design a new cavity geometry for the future experiment. This is based on the experience gained during cryogenic tests at DESY and FNAL, and a first physics run to detect high-frequency gravitational waves at FNAL at which you participate and analyze various data. For that, you will interact and work together with various renowned experts on their different fields and gain in-depth knowledge of various aspects of cavity operation.

Doctoral research associates will become members of the Quantum Universe Research School (QURS), which provides academic and soft skills training, as well as career planning support. In addition, they will receive individual budgets to facilitate the attendance of summer schools and conferences, and to support other educational measures. Additional travel money for project-specific duties will be provided by the hosting research groups. Doctoral research associates may participate in teaching at the University and in the organization of the Cluster via an early career council.

(18) Postdoctoral Fellowship Position

Postdoc Fellowship Position summary/title: Research Associate § 28 Subsection 1 HmbHG

Deadline : 12.08.2024

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Research associates will be expected primarily to teach and conduct research. The research associate will also have the opportunity to pursue further academic qualifications, in particular a doctoral dissertation or a habilitation (postdoctoral qualification). Therefore, at least one-third of set working hours will be made available for the associate’s own academic work.

The general focus of the Signal Processing (SP) research group is on developing novel methods for processing speech and audio signals, with applications in speech communication devices such as hearing aids, mobile telephony, and voice-controlled assistants. Modern machine learning and generative AI methods, such as diffusion models, have revolutionized the performance of these devices, for instance in acoustically challenging environments. 

Duties include academic services in the project named above. Research associates may also pursue independent research and further academic qualifications.

The primary focus of the Signal Processing (SP) research group is to develop innovative machine learning methods for speech signal processing. Our applications range across speech communication devices including but not limited to teleconferencing systems, assistive listening devices, and voice-controlled assistants. In this specific project, we will explore the use of score-based diffusion models to enhance speech using the capabilities of generative AI. Typical responsibilities for a Research Associate include authoring scientific publications and traveling to conferences and workshops to present the findings. We are seeking a highly motivated individual who is passionate about engaging in cutting-edge research within a supportive and pleasant working atmosphere.

Duties include academic services in the project named above. Research associates may also pursue independent research and further academic qualifications.

Carbon dioxide removal (CDR) is inevitable in scenarios which ensure to stay below the 1.5 or 2° target by the end of the century. As a swift deployment is necessary and many unknowns remain.

To evaluate the synergy effects of co-deployment of biochar and rock dust for enhanced weathering, lab experiments have been conducted. Within project PyMiCCS, these results have to be evaluated and prepared to be integrated into global soil and ecosystem models. Furthermore, a group of researchers from ecologists and soil scientists to geologists has to be coordinated and results harmonized.

In close connection to the results found within PyMiCCS, EU-funded project UPTAKE aims to facilitate the global and sustainable upscaling of CDR by developing a set of robust strategies through technical, theoretical, and practical analyses. The UPTAKE approach will allow the assessment of geographical, sectoral, socioeconomic, demographic, and temporal trade-offs, co-benefits, and opportunities emerging from portfolios of different CDR methods.

Duties include academic services in the project named above. Research associates may also pursue independent research and further academic qualifications.

Successful candidates are required to perform interdisciplinary and collaborative research concerning the development and analysis of high-performance numerical algorithms for fluid flow simulation methods.

Duties include academic services in the project named above. Research associates may also pursue independent research and further academic qualifications.

The successful applicant will work in a junior research group lead by Dr. Ata Makarem (as a part of Prof. Maison’s Lab) at the Institute of Pharmacy. The research project focuses on the synthesis and molecular investigation of novel bioorganometallic molecules for use in tumor targeting. The goal of this fundamental research is to develop imaging probes initially for prostate cancer, but also for other types of cancer. In this context, the candidate will synthesize and characterize these compounds and examine their biological activity in-vitro (cell experiments). Animal experiments and radiochemical studies will be conducted by an external partner. The project consists of 70-80 % organic synthesis and coordination chemistry and 20-30 % biochemistry.

Applications from international candidates and individuals from minorities are highly encouraged! Please provide the name and contact address of at least one reference. Please submit your application documents as a single PDF file.

Duties primarily include teaching and research. Research associates may also pursue independent research and further academic qualifications.

Own research is supported, but it has to fall in the scientific field of machine learning and Geophysics. The candidate is expected to supervise students on bachelor and master level. Teaching duties include four academic teaching hours per week during teaching periods.