Quantum Gases in Quasi-One-Dimensional Arrays

The experimental achievement of Bose-Einstein condensation (1995) and of Fermi degeneracy (1999) in ultra-cold, dilute gases has opened a new field in atomic physics and condensed matter physics. In this thesis, first we present an overview of theoretical and experimental facts on ultra-cold atomic gases. We then describe a Green's function scheme to study coherent transport by fermions through a one-dimensional array of potential wells. Within this scheme different geometries for the array like single-period, double-period and Fibonacci-ordered quasi-periodic array, will be considered. In continue a novel spin-density-functional approach will be introduced to study the ground-state of a one-dimensional trapped Fermi gases inside one-dimensional optical lattices. This approach enables us to investigate both repulsive and attractive Fermi gases within a local-spin-density approximation. We analyze different phases caused by spin-dependent trap for repulsive gas and also by spin-imbalanced population for attractive gas.

List of contents

Preface.- 1. Reviews on Ultra-cold quantum gases.- 2. Theory of matter transport in quasi-1D arrays.- 3. Density-functional theory of 1D Fermi gases.- 4. Ultra-cold attractive fermions in 1D optical lattices.

Product details

• Authors: Mohammad Reza Bakhtiari
• Publisher: Springer, Berlin
• Languages: English
• Product format: Paperback / Softback
• Released: 15.02.2008
• EAN: 9788876423192
• ISBN: 978-88-7642-319-2
• No. of pages: 168
• Dimensions: 167 mm x 13 mm x 242 mm
• Weight: 378 g
• Illustrations: XVI, 168 p.
• Series: Publications of the Scuola Normale Superiore; Theses (Scuola Normale Superiore)
• Subject: Natural sciences, medicine, IT, technology > Physics, astronomy > General, dictionaries