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Girish Saran Agarwal

Girish Saran Agarwal 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 Girish Saran Agarwal rather than just read about it. In short: Girish S. Agarwal, Fellow of the Royal Society UK, (born 7 July 1946) is a theoretical physicist.

Key takeaways

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

Reference excerpt

Girish S. Agarwal, Fellow of the Royal Society UK, (born 7 July 1946) is a theoretical physicist. He is currently at the Texas A & M University with affiliations to the Departments of Biological and Agricultural Engineering, Physics and Astronomy, and the Institute for Quantum Science and Engineering. Earlier he worked as Noble Foundation Chair and the Regents Professor at the Oklahoma State University. He is a recognized leader in the field of quantum optics and also has made major contributions to the fields of nonlinear optics, nanophotonics and plasmonics. In 2013 he published the textbook "Quantum Optics", covering a wide range of recent developments in the field, which has been well received by the community.

Life Born in Bareilly, India, Agarwal studied physics at the Gorakhpur University, Gorakhpur, India, (BSc in 1964) and Banaras Hindu University in Varanasi, India, (MSc in 1966). In 1969, he received his PhD from the University of Rochester, USA, followed by post-doctoral appointments at the University of Rochester, the University of Stuttgart, Germany, and The Tata Institute of Fundamental Research, Mumbai, India. In 1974, at the age of 28, he published his first monograph "Quantum Statistical Theories of Spontaneous Emission and their Relation to other Approaches" at Springer. This book on light–matter interaction and spontaneous decay has since been a standard reference for quantum optics researchers worldwide. After a few years at the Tata Institute of Fundamental Research and the Institute of Science, Mumbai, India, he was appointed in 1977 full professor at the University of Hyderabad, India, where he had the major responsibility to set up the School of Physics. In 1995, Girish S. Agarwal was appointed Director and Distinguished Scientist of the Physical Research Laboratory (PRL), Ahmedabad, India. From 1995 - 2000 he served additionally as Honorary Professor at the Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India, and from 2001 - 2005 held the Einstein Centenary Research Professorship of the Indian National Science Academy. Numerous guest professorships have taken him to the major centers of optics and quantum optics throughout the world, including the University of Rochester, Texas A & M University, College Station, the University of Colorado, Boulder, the Max-Planck Institute for Quantum Optics, Garching, Germany, the Max-Planck Institute for the Science of Light, Erlangen, Germany, the Universities of Essen, Ulm, and Erlangen, Germany, the Technical University of Vienna, Austria, and the University of Manchester, UK. As a scientist he served the international optics and quantum optics community by organizing schools and symposia, e.g., at the International Center for Theoretical Physics (ICTP), Trieste, Italy, for the benefit of the scientists from third world countries. He also spearheaded the efforts of the Indian Government's Department of Science and Technology to build up the infrastructure in the Physics Departments of Indian Universities. He also has served on the editorial board of various leading journals in optics and quantum optics, including Physical Review A.

Awards Girish S. Agarwal has received awards for his achievements in the field of optics and quantum optics. This includes the Humboldt Research Award, Germany (1997), the Max-Born Award of the Optical Society of America, USA (1988), the Einstein Medal of the Optical and Quantum Electronics Society, USA (1994), The World Academy of Sciences Prize in Physics (1994), the Shanti Swaroop Bhatnagar Award in Physical Sciences by the Government of India (1982) the Honoris causa of the University of Liege, Belgium (2007), and of the University of Hyderabad, India (2011), the Charles Hard Townes Award (2022), an Elected Fellow of The World Academy of Sciences (1997), an Elected Fellow of the Indian National Science Academy, New Delhi (1985), an Elected Fellow of the Optical Society of America (1986), an Elected Fellow of the Indian Academy of Sciences, Bangalore (1981), and an Elected Fellow of the American Physical Society (1981). He was invited to the Sir JC Bose Chair at the Indian Institute of Science Education and Research (IISER), Pune, India, and the JRD Tata Chair at The Tata Institute of Fundamental Research, Mumbai, India. In 2012 he was recognized by the Oklahoma State University by the "Eminent Faculty Award".

References

Selected publications Quantum statistical theories of spontaneous emission and their relation to other approaches, Springer Tracts in Modern Physics Band 70, 1974 Quantum Optics, Cambridge University Press 2012 Publisher Selected Papers on Fundamentals of Quantum Optics, SPIE Press 1995 Publisher Selected Papers on Resonant and Collective Phenomena in Quantum Optics, SPIE Press 1995

Worked examples

Example 1 — a first encounter with Girish Saran Agarwal

Start with the simplest possible case. Write down what Girish Saran Agarwal 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 Girish Saran Agarwal 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 Girish Saran Agarwal 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 Girish Saran Agarwal

In research
Girish Saran Agarwal 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 Girish Saran Agarwal 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
Girish Saran Agarwal is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1946 births, 20th-century Indian physicists, Banaras Hindu University alumni, so understanding it makes those chapters shorter.
In everyday life
Look for Girish Saran Agarwal 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 Girish Saran Agarwal in 20 minutes

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

Frequently asked questions

What is Girish Saran Agarwal in simple terms?

Girish S. Agarwal, Fellow of the Royal Society UK, (born 7 July 1946) is a theoretical physicist.

Why does Girish Saran Agarwal 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 Girish Saran Agarwal?

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 Girish Saran Agarwal.

Tags

  • 1946 births
  • 20th-century Indian physicists
  • Banaras Hindu University alumni
  • Deen Dayal Upadhyay Gorakhpur University alumni
  • Fellows of Optica (society)
  • Fellows of the American Physical Society
  • Fellows of the Indian National Science Academy
  • Humboldt Research Award recipients
  • Indian fellows of the Royal Society
  • Indian optical physicists
  • Indian theoretical physicists
  • Living people

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