The Bcs-Bec Crossover and the Unitary Fermi Gas

ISBN-13: 9783642219771 / Angielski / Miękka / 2011 / 532 str.

Wilhelm Zwerger

Opis

Recent experimental and theoretical progress has elucidated the tunable crossover, in ultracold Fermi gases, from BCS-type superconductors to BEC-type superfluids. The BCS-BEC Crossover and the Unitary Fermi Gas is a collaborative effort by leading international experts to provide an up-to-date introduction and a comprehensive overview of current research in this fast-moving field. It is now understood that the unitary regime that lies right in the middle of the crossover has remarkable universal properties, arising from scale invariance, and has connections with fields as diverse as nuclear physics and string theory.

This volume will serve as a first point of reference for active researchers in the field, and will benefit the many non-specialists and graduate students who require a self-contained, approachable exposition of the subject matter.

Spis treści

Preface.- The BCS-BEC Crossover and the Unitary Fermi Gas.- The BEC-BCS Crossover: Some History and Some General Observations.- Crossovers in Unitary Fermi Systems.- Pairing Fluctuations Approach to the BCS-BEC Crossover.- The Unitary Gas and its Symmetry Properties.- Universal Relations for Termions With Large Scattering Length.- Unitary Fermi Gas, E Expansion, and Nonrelativistic Conformal Field Theories.- Dilute Fermi and Bose Gases.- The Unitary Fermi Gas: From Monte Carlo to Density Functionals.- Scaling Flows and Dissipation in the Dilute Fermi Gas at Unitarity.- Thermodynamics of Fermi Gases.- Normal Phase of Polarised Strongly Interacting Fermi Gases.- Thermodynamics of Trapped Imbalanced Fermi Gases at Unitarity.- BCE-BEC Crossover and Unconventional Superfluid Order in one Dimension.

Blurb

Triggered by recent experimental and theoretical progress in elucidating the tunable crossover, in ultracold Fermi gases, from BCS-type superconductors to BEC-type superfluids, this volume is a collaborative effort by most leading international experts to provide both a pedagogical and up-to-date introduction and comprehensive overview of this newly emerging field. It is now understood that the unitary regime that lies right in the middle of the crossover has remarkable universal properties, arising from scale invariance, and has connections with fields as diverse as nuclear physics and string theory.

This volume will serve as reference for active researchers in the field and equally benefit the many non-specialists and graduate students looking for a selfcontained, approachable exposition of the subject matter.