This book is about quantum phenomena in two-dimensional (2D) electron systems with extremely strong internal interactions. The central objects of interest are Coulomb liquids, in which the average Coulomb interaction en ergy per electron is much higher than the mean kinetic energy, and Wigner solids. The main themes are quantum transport in two dimensions and the dynamics of highly correlated electrons in the regime of strong coupling with medium excitations. In typical solids, the mutual interaction energy of charge carriers is of the same order of magnitude as their kinetic energy, and the Fermi-liquid ap proach appears to be quite satisfactory. However, in 1970, a broad research began to investigate a remarkable model 2D electron system formed on the free surface of superfluid helium. In this system, complementary to the 2D electronic systems formed in semiconductor interface structures, the ratio of the mean Coulomb energy of electrons to their kinetic energy can reach ap proximately a hundred before it undergoes the Wigner solid (WS) transition. Under such conditions, the Fermi-liquid description is doubtful and one needs to introduce alternative treatments. Similar interface electron systems form on other cryogenic substrates like neon and solid hydrogen. 1 Two-Dimensional Interface Electron Systems.- 2 Strongly Correlated Coulomb Liquid.- 3 Quantum Transport Framework for Highly Correlated Electrons.- 4 Unconventional Hall Effect.- 5 Quantum Cyclotron Resonance.- 6 Interface Polarons.- 7 Wigner Solid. I. Dynamics on Rigid and Soft Interfaces.- 8 Wigner Solid. II. Transport Properties.- References.
Yuriy Monarkha: Degrees: Ph.D., Professor of physics; Post: Leading scientist. Permanent place of work: Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine. He has long experience of work as a visiting professor in different scientific centers: Institute for Solid State Physics (The University of Tokyo), Grenoble High Magnetic Field Laboratory (Max-Plank-Institute and CNRS), Institute of Physical and Chemical Research (RIKEN, Japan), Eindhoven University of Technology (The Netherlands).
