By Alexandr A. Ovchinnikov, Ivan I. Ukrainskii

Advances within the physics and chemistry of low-dimensional platforms were relatively very good within the previous few many years. countless numbers of quasi-one-dimensional and quasi-two-dimensional structures were synthesized and studied. the most well-liked representatives of quasi-one-dimensional fabrics are polyacethylenes CH [1] and engaging in donor-acceptor molecular crystals TIF z TCNQ. Examples of quasi-two-dimensional structures are extreme temperature su perconductors (HTSC) in accordance with copper oxides LA2CU04, YBa2Cu306+y and natural superconductors in accordance with BEDT -TIP molecules. The houses of such one- and two-dimensional fabrics aren't but absolutely understood. at the one hand, the equations of movement of one-dimensional sys tems are fairly basic, which allows rigorous ideas of version difficulties. nevertheless, manifestations of assorted interactions in one-dimensional structures are particularly extraordinary. This refers, specifically, to electron--electron and electron-phonon interactions. Even in the restrict of a susceptible coupling con stant electron--electron correlations produce an power hole within the spectrum of one-dimensional metals implying a Mott transition from steel to semiconductor kingdom. In these kinds of circumstances perturbation conception is inapplicable. that's one of many major problems at the method in the direction of a complete concept of quasi-one-dimensional structures. - This assembly held on the Institute for Theoretical Physics in Kiev may perhaps 15-18 1990 was once dedicated to similar difficulties. The papers chosen for this quantity are grouped into 3 sections.

**Read or Download Electron-Electron Correlation Effects in Low-Dimensional Conductors and Superconductors PDF**

**Best atomic & nuclear physics books**

**Cumulative Subject and Author Indexes for Volumes 1-38**

Those indexes are beneficial volumes within the serial, bringing jointly what has been released during the last 38 volumes. They contain a preface through the editor of the sequence, an writer index, a subject matter index, a cumulative checklist of bankruptcy titles, and listings of contents via quantity. summary: those indexes are beneficial volumes within the serial, bringing jointly what has been released during the last 38 volumes.

**Many-Body Schrödinger Dynamics of Bose-Einstein Condensates **

At tremendous low temperatures, clouds of bosonic atoms shape what's often called a Bose-Einstein condensate. lately, it has develop into transparent that many differing types of condensates -- so referred to as fragmented condensates -- exist. in an effort to inform no matter if fragmentation happens or now not, it will be significant to unravel the whole many-body Schrödinger equation, a role that remained elusive for experimentally proper stipulations for a few years.

**The Theory of Coherent Atomic Excitation (two-volume set)**

This publication examines the character of the coherent excitation produced in atoms by means of lasers. It examines the specific temporary edition of excited-state populations with time and with controllable parameters corresponding to laser frequency and depth. The dialogue assumes modest previous wisdom of trouble-free quantum mechanics and, in a few sections, nodding acquaintance with Maxwell's equations of electrodynamics.

**Electron-Electron Correlation Effects in Low-Dimensional Conductors and Superconductors**

Advances within the physics and chemistry of low-dimensional platforms were relatively tremendous within the previous couple of many years. enormous quantities of quasi-one-dimensional and quasi-two-dimensional structures were synthesized and studied. the most well-liked representatives of quasi-one-dimensional fabrics are polyacethylenes CH [1] and undertaking donor-acceptor molecular crystals TIF z TCNQ.

- Electron scattering in solid matter a theoretical and computational treatise
- Cpt and Lorentz Symmetry: Proceedings of the Second Meeting Held Bloomington, USA 15 - 18 August 2001
- Ion Implantation Science and Technology
- The Quantum Mechanical Few-Body Problem
- Biophotonics: Spectroscopy, Imaging, Sensing, and Manipulation
- Shapes and shells in nuclear structure

**Extra resources for Electron-Electron Correlation Effects in Low-Dimensional Conductors and Superconductors**

**Sample text**

C. M. R. E. King: J. Phys. Rev. Lett. 1. K. 1. Pokhodnia Institute for Theoretical Physics, Metrologicheskaya 14 252130 Kiev, USSR 1. Introduction Much interest has been generated in studying the electronic structure and physical properties of cuprate oxides-high-Tc superconductors (HTS) of LaCu-O and Y-Ba-Cu-O types [1, 2]. Some properties of HTS still remain unclarified. In particular several different mechanisms and model of current carriers have been proposed: band conductivity, polaron model, holon mechanism, kink model and so on.

5. e. zero magnetization at any value of u. But the energy values in different valleys are nearly the same. So we can conclude that displacements of total minimum from one valley to another are possible as a result of small perturbations. So, the glass-like behavior of 1-d and 2-d Hubbard systems is possible. Doping of the system and appearance of current carriers leads to the decrease of magnetization as a result of factor (1 - w 2 ) in the kinetic energy of carriers [5]. On the other hand, the magnetic interactions between Cu-O planes in the form leads to the stabilizations of the magnetic long-range order even though the value of Jeff is smaller by order than its value in plane.

The function P~r( G) is inverse to that of Gcr(p') (17). The sum of the neighboring domain widths (a period of twin structure) increases with pressure and also tends to infinity when p' = P~r(G) (Fig. 3). Intertwine boundaries in this case change the thickness insufficiently. The last one may be estimated as the thickness of "walls" of a soliton, being the solution to Eq. (12) when p' = P~r( G). The examples of the coordinate dependencies of oxygen atoms displacement u (from correspondent sites in Cu-Iattice) and the deformation of Cu-Iattice e are represented in Fig.