physics

Nina Rohringer

Nina Rohringer is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Nina Rohringer rather than just read about it. In short: Nina Rohringer is an Austrian physicist whose research concerns ultra-fast pulses from free-electron X-ray lasers, and their interactions with matter. She is a lead scientist at DESY, a professor at the University of Hamburg, and a faculty member of the Max Planck Institute for the Structure and Dynamics of Matter, in Germany.

Key takeaways

Nina Rohringer belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Nina Rohringer to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Nina Rohringer from memory before moving on to harder problems.

Reference excerpt

Nina Rohringer is an Austrian physicist whose research concerns ultra-fast pulses from free-electron X-ray lasers, and their interactions with matter. She is a lead scientist at DESY, a professor at the University of Hamburg, and a faculty member of the Max Planck Institute for the Structure and Dynamics of Matter, in Germany.

Education and career Rohringer earned a diploma at TU Wien, in Vienna, in 2000. She continued there for a PhD, completed in 2005. Her dissertation was Quantitative test of time-dependent density functional theory: Two-electron systems in an external laser field. After postdoctoral research in the US at the Argonne National Laboratory and Lawrence Livermore National Laboratory, and continued work as a research scientist at Lawrence Livermore, she became a group leader in the Max Planck Institute for the Physics of Complex Systems in Dresden in 2011, also affiliated with the DESY Center for Free-Electron Laser Science in Hamburg. After a 2015 reorganization, her group became part of the Max Planck Institute for the Structure and Dynamics of Matter. Since 2017 she has been a leading scientist at DESY and a professor at the University of Hamburg. At the University of Hamburg, she is research group leader for Theory of ultrafast processes with X-ray light in the Institute for Theoretical Physics and Faculty of Mathematics, Informatics and Natural Sciences. As well, she continues to hold an affiliation as former group leader and faculty member in the Max Planck Institute for the Structure and Dynamics of Matter.

Research It was during Rohringer's postdoctoral research at Argonne that her research focus shifted from density functional theory to X-ray atomic physics. While at Lawrence Livermore, she used the nearby Linac Coherent Light Source at the SLAC National Accelerator Laboratory to energize high-pressure neon to lase, creating the first atomic X-ray laser, with a much more sharply defined frequency range than free-electron lasers. More recently her research with the European XFEL has used X-ray pulses to explore ionization in warm dense matter.

Recognition Rohringer was named as a Fellow of the American Physical Society (APS) in 2023, after a nomination from the APS Division of Atomic, Molecular and Optical Physics, "for outstanding theoretical concepts in the new field of non-linear X-ray science and experiments at X-ray free electron lasers".

References

External links Theoretical and Ultrafast X-ray Science group at DESY Nina Rohringer publications indexed by Google Scholar

Worked examples

Example 1 — a first encounter with Nina Rohringer

Start with the simplest possible case. Write down what Nina Rohringer claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Nina Rohringer before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Nina Rohringer ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Nina Rohringer

In research: Nina Rohringer appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Nina Rohringer in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Nina Rohringer is common in secondary-school and first-year university syllabi. It links to neighbouring topics Academic staff of the University of Hamburg, Austrian physicists, Austrian women physicists, so understanding it makes those chapters shorter.
In everyday life: Look for Nina Rohringer outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Nina Rohringer in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Nina Rohringer means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Nina Rohringer out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Nina Rohringer in simple terms?

Why does Nina Rohringer matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Nina Rohringer?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Nina Rohringer.