physics

Stephen Parke

Stephen Parke 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 Stephen Parke rather than just read about it. In short: Stephen Parke is a New Zealand-American theoretical physicist. He is a distinguished scientist and former head (2010–2015) of the Theoretical Physics Department at the Fermi National Accelerator Laboratory Batavia, Illinois.

Key takeaways

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

Reference excerpt

Stephen Parke is a New Zealand-American theoretical physicist. He is a distinguished scientist and former head (2010–2015) of the Theoretical Physics Department at the Fermi National Accelerator Laboratory Batavia, Illinois. Born in Gisborne, New Zealand, Parke attended Campion College, Gisborne and St Peter's College, Auckland. He did his undergraduate studies, mathematics and physics, at the University of Auckland in New Zealand where his mentor was Dan Walls. He obtained a Fulbright Travel Grant and was awarded a Frank Knox Memorial Fellowship to attend graduate school at Harvard University. He was a graduate student of Sidney Coleman, obtaining a PhD in theoretical particle physics in 1980. He held a postdoctoral fellowship at the Stanford Linear Accelerator Center (1980–1983) collaborating with Sidney Drell before moving to the Fermi National Accelerator Laboratory as an Associate Scientist. He became an APS fellow in 1996 and in 2018 he was awarded a Doctorate of Science from the University of Auckland for his work on "Amplitudes in Gauge Theories". Parke's Erdos number is 3, having written papers with both Sidney Coleman and mathematician Terence Tao.

Contributions to physics He is an originator of Parke–Taylor amplitudes, which he developed with his colleague, Tomasz Taylor. Parke-Taylor amplitudes represent a new approach to computing scattering amplitudes in quantum chromodynamics using symmetry methods such as supersymmetry. This work was further extended in collaboration with Michelangelo Mangano and Xu Zhan. The discovery of the Parke-Taylor amplitudes ignited the amplitude revolution: a major advance in our understanding and calculability of scattering amplitudes in gauge theories, the foundation of particle physics. This advance is discussed in detail in Chapter 11 of Graham Farmelo's book "The Universe speaks in Numbers". Parke's important Amplitude papers are linked here. With collaborator Gregory Mahon and others he pioneered the study of spin correlations in Top Quark pair production at Hadron collider which has led to the confirmation of quantum entanglement at the highest possible energy by ATLAS and CMS. Here is a link to his important Top Quark papers. Parke is also an expert on neutrino physics. He gave the first analytical solution to the MSW effect including the non-adabatic region and has made important contributions to the physics of Long baseline Neutrino Oscillation experiments, T2K, NOvA, Hyper-Kamiokande and DUNE as well as the reactor experiments RENO, Daya Bay and JUNO. Here is a link to his important Neutrino papers. He has also written papers on Magnetic Monopoles and the decay of the false vacuum in curved space time.

Personal life Parke's father was the orthopedic surgeon William Parke and mother Muriel Parke (née Stephens), a school teacher. His parents both born in Liverpool immigrated from the UK to New Zealand in 1949 to help with the polio epidemic raging in New Zealand at that time. Parke is a nephew of marine botanist Mary Parke. Parke is married to Winifred Haun, the MacArthur Foundation and 3Arts award-winning Choreographer and artistic director of the contemporary dance company Winifred Haun & Dancers. They have three daughters: Athena, Iris and Selene.

See also List of alumni of St Peter's College, Auckland for more biographical details

References

External links Stephen Parke on INSPIRE-HEP Stephen Parke at Fermilab Theoretical Physics Department

Illustrations

Worked examples

Example 1 — a first encounter with Stephen Parke

Start with the simplest possible case. Write down what Stephen Parke 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 Stephen Parke 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 Stephen Parke 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 Stephen Parke

In research: Stephen Parke 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 Stephen Parke 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: Stephen Parke is common in secondary-school and first-year university syllabi. It links to neighbouring topics 20th-century American physicists, 20th-century New Zealand physicists, 21st-century American physicists, so understanding it makes those chapters shorter.
In everyday life: Look for Stephen Parke 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 Stephen Parke in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Stephen Parke 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 Stephen Parke out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Stephen Parke in simple terms?

Why does Stephen Parke 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 Stephen Parke?

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 Stephen Parke.