"More and Different"
Professor Philip W. Anderson
Q: What was your moti-vation for publishing this book?
A: Aside from sheer egotism, I felt guilty that I had never tried to write the book which I should have, explaining for the layman what a wonderful and exciting field con-densed matter physics is, in the same way that Brian Greene or Stephen Hawking have done for particle physics and cosmology, Henry Petroski for engineering, — or Primo Levi for chemistry. Bob Laughlin tried, bravely, but I think the field is so much a mixture of the abstract and deep with simple practicality that it may be impossible to do so. In any case, this is what I could do.
Q: The name of the field “Condensed Matter Physics” was apparently coined by you and Volker Heine in 1967. How did it come about?
A: Very simply, we wanted to name this new entity when I joined Volker at the Cavendish Laboratory in 1967, and solid state physics was too restrictive as we were interested in liquids, glass, nuclear matter and the like; the term became even more appropriate when Sam Edwards joined us in 1974.
Q: You have worked on many interesting topics in condensed matter physics. Which topics will set the trends in research for the next decade?
A: Trends in research are very hard to predict — luck and fashion play a big role. I can tell you very fashionable subjects which are almost sure to disappear — two examples are the attempted use of gravitational analogies in condensed matter, and the idea of the “electron nematic.” As to which of the breakthroughs today that are going to fructify is anyone’s guess. If I had to guess I would opt for low-temperature properties of the quantum solid; complex, strong-interacting quantum fluids (spin liquids, “unitary” interacting fluids, vortex fluids); and projective quantum systems. But these are in my restricted field and I see the true expansion coming in biophysics and neuroscience. “Agenthood,” free will and consciousness need to be understood.