Excitations in Liquid and Solid Helium [Hardcover]

Liquid 4He and 3He are the purest Bose and Fermi liquids currently found in nature. Understanding their dynamics is fundamental to understanding more complex matter. This book provides an introduction to the subject and develops the theory of zero sound, phonons, rotons, spin and single particle excitations in quantum solids and fluids. Similarities between quantum solids and fluids are drawn wherever possible. Topics include dynamic response functions, neutron studies of solid helium, the nature of excitations in 3He, approximations to the dynamic susceptibility, and intermediate and high momentum transfer, among many others. In offering a critical comparison between theory and up-to-the-minute experimental data, the book provides a comprehensive assessment of our current understanding of collective and single particle excitations in quantum liquids and solids.

1. Introduction
2. Dynamic Response Functions
3. Physics of Solid Helium
4. Dynamic Structure Factor of Solid Helium
5. Self Consistent Phonon Theory
6. Neuron Studies of Solid Helium
7. Introduction to Liquid 4He
8. Microscopic Picture
9. Historical Development of Ideas
10. Observed Properties of Liquid 4He
11. Microscopic Picture
12. Nature of Excitations in Liquid 4He
13. Excitations in Liquid 3He
14. Dynamic Susceptibility of 3He
15. Approximations to the Dynamic Susceptibility
16. Models of S(Q,omega) in Liquid 3He
17. Mori and Kinetic Theories of Liquid 3He
18. The Impulse Approximation
19. Final State Contributions
20. Intermediate and High Momentum Transfer
21. Recent Monographs and Conference Proceedings

A fine addition to the literature. It belongs on the bookshelf of anyone seriously interested in understanding the theory of excitations in quantum fluids and solids. . . I highly recommend it to those who are entering the field, those who want a tutorial and those who want a guide to the relevant literature. --Robert HalCÏ