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Quantum Gases in Quasi-One-Dimensional Arrays

Mohammad Reza Bakhtiari (Autor)

Buch | Softcover

168 Seiten

2008 | 2008 ed.
Scuola Normale Superiore (Verlag)
978-88-7642-319-2 (ISBN)

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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.

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.

Erscheint lt. Verlag	15.2.2008
Reihe/Serie	Publications of the Scuola Normale Superiore ; 5
Reihe/Serie	Theses (Scuola Normale Superiore)
Zusatzinfo	XVI, 168 p.
Verlagsort	Pisa
Sprache	englisch
Themenwelt	Naturwissenschaften ► Physik / Astronomie ► Allgemeines / Lexika
	Naturwissenschaften ► Physik / Astronomie ► Festkörperphysik
	Naturwissenschaften ► Physik / Astronomie ► Theoretische Physik
ISBN-10	88-7642-319-2 / 8876423192
ISBN-13	978-88-7642-319-2 / 9788876423192
Zustand	Neuware