physics

Tracy Northup

Tracy Northup 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 Tracy Northup rather than just read about it. In short: Tracy E. Northup (born 1978) is an American physicist who works at the Institute for Experimental Physics, University of Innsbruck, Austria.

Key takeaways

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

Reference excerpt

Tracy E. Northup (born 1978) is an American physicist who works at the Institute for Experimental Physics, University of Innsbruck, Austria. Her research considers the development of optical cavities and trapped ions to improve quantum mechanical interactions. She was awarded the 2016 Start-Preis of the Austrian Science Fund.

Early life and education Northup was born in Newton, Massachusetts. She received an undergraduate degree in physics at Harvard University. She then moved to the West Coast of the United States and earned her doctoral degree at the California Institute of Technology, where she studied coherent control in cavity quantum electrodynamics under the supervision of H. Jeff Kimble. She then joined Rainer Blatt's group at the University of Innsbruck as an international Marie Curie fellow.

Research and career In 2015, Northup was appointed to the faculty of the University of Innsbruck, where she leads the Quantum Interfaces group. In an effort to achieve highly precise control of macroscopic objects, she has explored ways to achieve the nonlinear coupling through the use of a levitating glass sphere, a trapped ion and an optical resonator. The levitating glass sphere is isolated from its environment and is brought into a superposition of states. Northup was awarded the 2016 Start-Preis of the Austrian Science Fund. She is a member of the Erwin Schrödinger Center for Quantum Science & Technology. In the field of quantum computing, one of the candidate technologies are ion traps. In ion traps charged particles of ultra cold molecules are trapped in electromagnetic field, and manipulated such that they can carry information. However, the quantum mechanical processes that are exploited by ion traps suffer from errors, such as heating up of the molecules themselves. These errors are understood to originate from the weakly conducting materials such as the oxide layers that form on metal surfaces. Northup has developed approaches to evaluate the impact of dielectric materials on the particles within ion traps. In her ion trap systems, Northup can control the distance between the ions and the dielectric optical components and makes use of the fluctuation-dissipation theorem to calculate the experimental noise. She was involved in the development of the first operating system that allows programming quantum network applications and executing them on quantum network nodes. Since 2022, Northup is the Deputy Speaker of Austria's Special Research Program BeyondC: Quantum Information Systems Beyond Classical Capabilities, starting in 2019, featuring a cooperation of University of Innsbruck, University of Vienna, Johannes Kepler University Linz, Institute of Science and Technology Austria, and temporarily the German Max Planck Institute of Quantum Optics.

Selected publications K. M. Birnbaum; A. Boca; R. Miller; A. D. Boozer; T. E. Northup; H. J. Kimble (1 July 2005). "Photon blockade in an optical cavity with one trapped atom". Nature. 436 (7047): 87–90. arXiv:quant-ph/0507065. doi:10.1038/nature03804. ISSN 1476-4687. PMID 16001065. Wikidata Q33218360. R Miller; T E Northup; K M Birnbaum; A Boca; A D Boozer; H J Kimble (25 April 2005). "Trapped atoms in cavity QED: coupling quantized light and matter". Journal of Physics B. 38 (9): S551–S565. doi:10.1088/0953-4075/38/9/007. ISSN 0953-4075. Wikidata Q56882263. A. D. Boozer; A. Boca; R. Miller; T. E. Northup; H. J. Kimble (2007), Reversible state transfer between light and a single trapped atom, doi:10.1364/cqo.2007.jwc3, Wikidata Q59714712

References

External links Tracy Northup at the University of Innsbruck Tracy Northup publications indexed by Google Scholar

Illustrations

Worked examples

Example 1 — a first encounter with Tracy Northup

Start with the simplest possible case. Write down what Tracy Northup 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 Tracy Northup 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 Tracy Northup 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 Tracy Northup

In research: Tracy Northup 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 Tracy Northup 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: Tracy Northup is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1978 births, 21st-century American women, Academic staff of the University of Innsbruck, so understanding it makes those chapters shorter.
In everyday life: Look for Tracy Northup 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 Tracy Northup in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Tracy Northup 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.
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Frequently asked questions

What is Tracy Northup in simple terms?

Tracy E. Northup (born 1978) is an American physicist who works at the Institute for Experimental Physics, University of Innsbruck, Austria.

Why does Tracy Northup 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 Tracy Northup?

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 Tracy Northup.