astronomy

Kim Jihn-eui

Kim Jihn-eui is a astronomy 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 Kim Jihn-eui rather than just read about it. In short: Kim Jihn-eui (Korean: 김진의; born July 30, 1946) is a South Korean theoretical physicist. His research interests concentrate on particle physics and cosmology and has many contributions to the field, most notably the suggestion of the invisible axion.

Key takeaways

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

Reference excerpt

Kim Jihn-eui (Korean: 김진의; born July 30, 1946) is a South Korean theoretical physicist. His research interests concentrate on particle physics and cosmology and has many contributions to the field, most notably the suggestion of the invisible axion.

Birth and education Kim was born in Gurye, South Jeolla Province in 1946. He graduated from Kyunggi High School and earned his bachelor's degree in chemical engineering from Seoul National University in 1971. He earned his Ph.D. in particle physics from University of Rochester in 1975. He became a research associate at Brown University from 1975 to 1977 and worked as a research investigator at University of Pennsylvania to 1980. Then he was appointed to assistant professor of Seoul National University in 1980 and had been there until retirement in 2011. Afterwards he took a position at Gwangju Institute of Science and Technology in Gwangju. Currently he is distinguished professor and eminent scholar at Kyung Hee University. He was also a professor in School of Physics at Korea Institute for Advanced Study from 1998 to 1999 and held many inviting positions from other institutions including CERN, University of Michigan, Harvard University and University of Bonn.

Research Kim's research is focused on the elementary particle theory and particle cosmology. He suggested the invisible axion model known as the KSVZ (Kim–Shifman–Vainshtein–Zakharov) model, which provides a solution to the strong CP problem in the Standard Model. He also advocated that the axino, the supersymmetric dual of axion, can be a strong candidate of dark matter of our universe and contended that it might have played an important role in the formation of galaxies and may offer a significant part of the current energy density of the universe. His review about the neutral current gave a good understanding of the Glashow–Salam–Weinberg model to the field. With H. P. Nilles, he formulated and presented the solution of the μ problem in supergravity, then he led the calculation of the cosmological effect of the gravitino. From the collapse effect of the supergraviton which interacts much weaker than a light axion or axino, Kim obtained the upper limit of the reheating temperature of the universe 109GeV and that made an early contribution of the field of cosmological research about heavy and weak interacting particles. He also did the first attempt to get the Standard Model from the superstring theory. He contributed to the development of standard model from the higher-dimensional theories by reducing the dimensions of orbifold and was absorbed in the cosmological constant problem and gave a clue of the solution of it in 5d spacetime.

Honors and awards 1987: Korea Science Award 1992: Ho-Am Prize 2001: Humboldt Prize 2003: Top Scientist and Technologist Award of Korea

Bibliography Kang-Sin Choi; Jihn E. Kim (2009). Quarks and Leptons From Orbifolded Superstring. Springer. ISBN 978-3-540-32763-9. Kim Jihn Eui (1984). 소립자와 게이지 상호작용 [Elementary Particles and Gauge Interactions]. Daewoo Academic Series : Natural Science 001 (in Korean). Minumsa. ISBN 89-374-3500-4. Archived from the original on 2011-07-22. Retrieved 2010-02-22.

Illustrations

Worked examples

Example 1 — a first encounter with Kim Jihn-eui

Start with the simplest possible case. Write down what Kim Jihn-eui claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 Kim Jihn-eui 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 Kim Jihn-eui 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 Kim Jihn-eui

In research: Kim Jihn-eui appears in astronomy 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 Kim Jihn-eui 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: Kim Jihn-eui is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1946 births, Academic staff of Gwangju Institute of Science and Technology, Academic staff of Seoul National University, so understanding it makes those chapters shorter.
In everyday life: Look for Kim Jihn-eui 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 Kim Jihn-eui in 20 minutes

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

Frequently asked questions

What is Kim Jihn-eui in simple terms?

Why does Kim Jihn-eui matter?

Because it connects several astronomy 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 Kim Jihn-eui?

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 Kim Jihn-eui.