skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Exactly solvable spin dynamics of an electron coupled to a large number of nuclei; the electron-nuclear spin echo in a quantum dot

Abstract

The model used to describe the spin dynamics in quantum dots after optical excitation is considered. Problems of the electron-spin polarization decay and the dependence of the steady-state polarization on magnetic field are solved on the basis of exact diagonalization of the model Hamiltonian. An important role of the nuclear state is shown and methods of its calculation for different regimes of optical excitation are proposed. The effect of spin echo generation after application of a {pi} pulse of a magnetic field is predicted for the system under consideration.

Authors:
 [1]
  1. St. Petersburg State University, Institute of Physics (Russian Federation), E-mail: gkozlov@photonics.phys.spbu.ru
Publication Date:
OSTI Identifier:
21075689
Resource Type:
Journal Article
Journal Name:
Journal of Experimental and Theoretical Physics
Additional Journal Information:
Journal Volume: 105; Journal Issue: 4; Other Information: DOI: 10.1134/S1063776107100159; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7761
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRONS; EXACT SOLUTIONS; EXCITATION; HAMILTONIANS; MAGNETIC FIELDS; POLARIZATION; QUANTUM DOTS; SPIN; SPIN ECHO; SPIN ORIENTATION; STEADY-STATE CONDITIONS

Citation Formats

Kozlov, G. G. Exactly solvable spin dynamics of an electron coupled to a large number of nuclei; the electron-nuclear spin echo in a quantum dot. United States: N. p., 2007. Web. doi:10.1134/S1063776107100159.
Kozlov, G. G. Exactly solvable spin dynamics of an electron coupled to a large number of nuclei; the electron-nuclear spin echo in a quantum dot. United States. https://doi.org/10.1134/S1063776107100159
Kozlov, G. G. 2007. "Exactly solvable spin dynamics of an electron coupled to a large number of nuclei; the electron-nuclear spin echo in a quantum dot". United States. https://doi.org/10.1134/S1063776107100159.
@article{osti_21075689,
title = {Exactly solvable spin dynamics of an electron coupled to a large number of nuclei; the electron-nuclear spin echo in a quantum dot},
author = {Kozlov, G. G.},
abstractNote = {The model used to describe the spin dynamics in quantum dots after optical excitation is considered. Problems of the electron-spin polarization decay and the dependence of the steady-state polarization on magnetic field are solved on the basis of exact diagonalization of the model Hamiltonian. An important role of the nuclear state is shown and methods of its calculation for different regimes of optical excitation are proposed. The effect of spin echo generation after application of a {pi} pulse of a magnetic field is predicted for the system under consideration.},
doi = {10.1134/S1063776107100159},
url = {https://www.osti.gov/biblio/21075689}, journal = {Journal of Experimental and Theoretical Physics},
issn = {1063-7761},
number = 4,
volume = 105,
place = {United States},
year = {Mon Oct 15 00:00:00 EDT 2007},
month = {Mon Oct 15 00:00:00 EDT 2007}
}