physics

John Henry Schwarz

John Henry Schwarz 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 John Henry Schwarz rather than just read about it. In short: John Henry Schwarz (Born November 22, 1941) is an American theoretical physicist. Along with Yoichiro Nambu, Holger Bech Nielsen, Joël Scherk, Gabriele Veneziano, Michael Green, and Leonard Susskind, he is regarded as one of the founders of string theory.

Key takeaways

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

Reference excerpt

John Henry Schwarz (Born November 22, 1941) is an American theoretical physicist. Along with Yoichiro Nambu, Holger Bech Nielsen, Joël Scherk, Gabriele Veneziano, Michael Green, and Leonard Susskind, he is regarded as one of the founders of string theory.

Early life and education He studied mathematics at Harvard College (A.B., 1962) and theoretical physics at the University of California at Berkeley (Ph.D., 1966), where his graduate advisor was Geoffrey Chew. For several years he was one of the very few physicists who pursued string theory as a viable theory of quantum gravity. His work with Michael Green on anomaly cancellation in Type I string theories led to the so-called "first superstring revolution" of 1984, which greatly contributed to moving string theory into the mainstream of research in theoretical physics. Schwarz was an assistant professor at Princeton University from 1966 to 1972. He then moved to the California Institute of Technology (Caltech), where he is currently the Harold Brown Professor of Theoretical Physics.

Awards He was elected a member of the National Academy of Sciences and a Fellow of the American Physical Society (1986). He was a fellow of the MacArthur Foundation in 1987. He received the Dirac Medal of the International Centre for Theoretical Physics in 1989, and the Dannie Heineman Prize for Mathematical Physics of the American Physical Society in 2002. On December 12, 2013, he shared the Breakthrough Prize in Fundamental Physics with Michael Green "for opening new perspectives on quantum gravity and the unification of forces."

Selected publications Green, M., John H. Schwarz, and E. Witten. Superstring Theory. Vol. 1, Introduction. Cambridge Monographs on Mathematical Physics. Cambridge, UK: Cambridge University Press, 1988. ISBN 9780521357524. Superstring Theory. Vol. 2, Loop Amplitutes, Anomalies and Phenomenology. Cambridge, UK: Cambridge University Press, 1988. ISBN 9780521357531. Becker, Katrin, Melanie Becker, and John H. Schwarz. String theory and M-theory: A modern introduction. Cambridge University Press, 2006. ISBN 978-0-521-86069-7.

References

External links

Schwarz, John H. (March 11, 2016). "Unifying GR with Quantum Theory" (PDF). Burke Institute, Caltech. "Interview with John H. Schwarz by Sara Lippincott. Pasadena, California, July 21 and 26, 2000". Oral History Project, California Institute of Technology Archives. Oral history interview transcript with John Schwarz on 7 July 2020, American Institute of Physics, Niels Bohr Library & Archives "Some Basic Superstring Theory, John Schwarz | Lecture 1 of 2". YouTube. aoflex. December 24, 2013. (July 14. 2008 lecture) "PiTP-Some Basic Superstring Theory, Part 2 - John Schwarz". YouTube. July 11, 2017. (July 15, 2008 lecture) "Day 3, Theoretical Physics Session, John Schwarz". YouTube. Int'l Centre for Theoretical Physics. October 15, 2014. "John Schwarz - Lecture: String Theory #NFLS". YouTube. Nobel Fest. April 15, 2021. "John Schwarz - String Theory: Past, Present, and Future". YouTube. Simons Center for Geometry and Physics. December 14, 2021.

Worked examples

Example 1 — a first encounter with John Henry Schwarz

Start with the simplest possible case. Write down what John Henry Schwarz 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 John Henry Schwarz 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 John Henry Schwarz 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 John Henry Schwarz

In research: John Henry Schwarz 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 John Henry Schwarz 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: John Henry Schwarz is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1941 births, 21st-century American physicists, American string theorists, so understanding it makes those chapters shorter.
In everyday life: Look for John Henry Schwarz 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 John Henry Schwarz in 20 minutes

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

Frequently asked questions

What is John Henry Schwarz in simple terms?

Why does John Henry Schwarz 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 John Henry Schwarz?

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 John Henry Schwarz.