Ultra Cold Fermi Gases
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Ultra Cold Fermi Gases
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Author : M. Inguscio
language : en
Publisher: IOS Press
Release Date : 2008-04-18
Ultra Cold Fermi Gases written by M. Inguscio and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-04-18 with Science categories.
The field of cold atomic gases faced a revolution in 1995 when Bose-Einstein condensation was achieved. Since then, there has been an impressive progress, both experimental and theoretical. The quest for ultra-cold Fermi gases started shortly after the 1995 discovery, and quantum degeneracy in a gas of fermionic atoms was obtained in 1999. The Pauli exclusion principle plays a crucial role in many aspects of ultra-cold Fermi gases, including inhibited interactions with applications to precision measurements, and strong correlations. The path towards strong interactions and pairing of fermions opened up with the discovery in 2003 that molecules formed by fermions near a Feshbach resonance were surprisingly stable against inelastic decay, but featured strong elastic interactions. This remarkable combination was explained by the Pauli exclusion principle and the fact that only inelastic collisions require three fermions to come close to each other. The unexpected stability of strongly interacting fermions and fermion pairs triggered most of the research which was presented at this summer school. It is remarkable foresight (or good luck) that the first steps to organize this summer school were already taken before this discovery. It speaks for the dynamics of the field how dramatically it can change course when new insight is obtained. The contributions in this volume provide a detailed coverage of the experimental techniques for the creation and study of Fermi quantum gases, as well as the theoretical foundation for understanding the properties of these novel systems.
Proceedings Of The International School Of Physics Enrico Fermi
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Author : Società italiana di fisica
language : en
Publisher: IOS Press
Release Date : 2007
Proceedings Of The International School Of Physics Enrico Fermi written by Società italiana di fisica and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Science categories.
The field of cold atomic gases faced a revolution in 1995 when Bose-Einstein condensation was achieved. The quest for ultra-cold Fermi gases started shortly after the 1995 discovery, and quantum degeneracy in a gas of fermionic atoms was obtained in 1999. This work covers experimental techniques for the creation and study of Fermi quantum gases.
Ultracold Bosonic And Fermionic Gases
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Author : Kathryn Levin
language : en
Publisher: Elsevier
Release Date : 2012-07-30
Ultracold Bosonic And Fermionic Gases written by Kathryn Levin and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-07-30 with Science categories.
The rapidly developing topic of ultracold atoms has many actual and potential applications for condensed-matter science, and the contributions to this book emphasize these connections. Ultracold Bose and Fermi quantum gases are introduced at a level appropriate for first-year graduate students and non-specialists such as more mature general physicists. The reader will find answers to questions like: how are experiments conducted and how are the results interpreted? What are the advantages and limitations of ultracold atoms in studying many-body physics? How do experiments on ultracold atoms facilitate novel scientific opportunities relevant to the condensed-matted community? This volume seeks to be comprehensible rather than comprehensive; it aims at the level of a colloquium, accessible to outside readers, containing only minimal equations and limited references. In large part, it relies on many beautiful experiments from the past fifteen years and their very fruitful interplay with basic theoretical ideas. In this particular context, phenomena most relevant to condensed-matter science have been emphasized. Introduces ultracold Bose and Fermi quantum gases at a level appropriate for non-specialists Discusses landmark experiments and their fruitful interplay with basic theoretical ideas Comprehensible rather than comprehensive, containing only minimal equations
Ultracold Fermi Gas With Repulsive Interactions
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Author : Ye-Ryoung Lee
language : en
Publisher:
Release Date : 2012
Ultracold Fermi Gas With Repulsive Interactions written by Ye-Ryoung Lee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
This thesis presents results from experiments of ultracold atomic Fermi gases with repulsive interaction. Itinerant ferromagnetism was studied by simulating the Stoner model with a strongly interacting Fermi gas of ultracold atoms. We observed nonmonotonic behavior of lifetime, kinetic energy, and size for increasing repulsive interactions, which is in good agreement with a mean-field model for the ferromagnetic phase transition. However, later research showed the absence of enhanced spin fluctuation, which is definitive evidence against the ferromagnetic phase transition. Still, our work triggered a lot of research on repulsive interactions in ultracold Fermi gases. A quantitative approach is taken to study ultracold Fermi gases with repulsive interaction. This is done by careful measurements of density profiles in equilibrium. First, Pauli paramagnetism is observed in trapped atomic samples which have an inhomogeneous density due to the harmonic confinement potential. We experimentally measure the susceptibility of ideal Fermi gas. This research shows that ultracold atoms can serve as model systems to demonstrate well-known textbook physics in a more ideal way than other systems. Then, Fermi gases with repulsive interactions are characterized by measuring their compressibility as a function of interaction strength. The compressibility is obtained from in-trap density distributions monitored by phase contrast imaging. For interaction parameters kFa > 0.25 fast decay of the gas prevents the observation of equilibrium profiles. For smaller interaction parameters, the results are adequately described by first-order perturbation theory. A novel phase contrast imaging method compensates for dispersive distortions of the images.
Physics On Ultracold Quantum Gases
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Author : Yongjian Han
language : en
Publisher: World Scientific
Release Date : 2018-11-16
Physics On Ultracold Quantum Gases written by Yongjian Han and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-16 with Science categories.
This book derives from the content of graduate courses on cold atomic gases, taught at the Renmin University of China and at the University of Science and Technology of China. It provides a brief review on the history and current research frontiers in the field of ultracold atomic gases, as well as basic theoretical description of few- and many-body physics in the system. Starting from the basics such as atomic structure, atom-light interaction, laser cooling and trapping, the book then moves on to focus on the treatment of ultracold Fermi gases, before turning to topics in quantum simulation using cold atoms in optical lattices.The book would be ideal not only for professionals and researchers, but also for familiarizing junior graduate students with the subject and aiding them in their preparation for future study and research in the field.
Ultra Cold Fermi Gases
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Author : Massimo Inguscio
language : en
Publisher:
Release Date : 2007
Ultra Cold Fermi Gases written by Massimo Inguscio and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
Proceedings Of The International School Of Physics Enrico Fermi
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Author : Società italiana di fisica
language : en
Publisher:
Release Date : 2007
Proceedings Of The International School Of Physics Enrico Fermi written by Società italiana di fisica and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Science categories.
The field of cold atomic gases faced a revolution in 1995 when Bose-Einstein condensation was achieved. The quest for ultra-cold Fermi gases started shortly after the 1995 discovery, and quantum degeneracy in a gas of fermionic atoms was obtained in 1999. This work covers experimental techniques for the creation and study of Fermi quantum gases.
Quantum Matter At Ultralow Temperatures
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Author : M. Inguscio
language : en
Publisher: IOS Press
Release Date : 2016-09-27
Quantum Matter At Ultralow Temperatures written by M. Inguscio and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-27 with Science categories.
The Enrico Fermi summer school on Quantum Matter at Ultralow Temperatures held on 7-15 July 2014 at Varenna, Italy, featured important frontiers in the field of ultracold atoms. For the last 25 years, this field has undergone dramatic developments, which were chronicled by several Varenna summer schools, in 1991 on Laser Manipulation of Atoms, in 1998 on Bose-Einstein Condensation in Atomic Gases, and in 2006 on Ultra-cold Fermi Gases. The theme of the 2014 school demonstrates that the field has now branched out into many different directions, where the tools and precision of atomic physics are used to realise new quantum systems, or in other words, to quantum-engineer interesting Hamiltonians. The topics of the school identify major new directions: Quantum gases with long range interactions, either due to strong magnetic dipole forces, due to Rydberg excitations, or, for polar molecules, due to electric dipole interactions; quantum gases in lower dimensions; quantum gases with disorder; atoms in optical lattices, now with single-site optical resolution; systems with non-trivial topological properties, e.g. with spin-orbit coupling or in artificial gauge fields; quantum impurity problems (Bose and Fermi polarons); quantum magnetism. Fermi gases with strong interactions, spinor Bose-Einstein condensates and coupled multi-component Bose gases or Bose-Fermi mixtures continue to be active areas. The current status of several of these areas is systematically summarized in this volume.
Ultra Cold Fermi Gases
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Author : M. Inguscio
language : en
Publisher:
Release Date : 2007
Ultra Cold Fermi Gases written by M. Inguscio and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Cold gases categories.
Ultra Cold Fermi Gases Course Clxiv
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Author : M. Inguscio
language : en
Publisher:
Release Date : 2007
Ultra Cold Fermi Gases Course Clxiv written by M. Inguscio and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
The field of cold atomic gases faced a revolution in 1995 when Bose-Einstein condensation was achieved. Since then, there has been an impressive progress, both experimental and theoretical. The quest for ultra-cold Fermi gases started shortly after the 1995 discovery, and quantum degeneracy in a gas of fermionic atoms was obtained in 1999. The Pauli exclusion principle plays a crucial role in many aspects of ultra-cold Fermi gases, including inhibited interactions with applications to precision measuremens, and strong correlations. The path towards strong interactions and pairing of fermions opened up with the discovery in 2003 that molecules formed by fermions near a Feshbach resonance were surprisingly stable against inelastic decay, but featured strongelastic interactions. This remarkable combination was explained by the Pauli exclusion principle and the fact that only inelastic collisions require three fermions to come close to each other. The unexpected stability of strongly interacting fermions and ermion pairs triggered most of the research which was presented at this summer school. It is remarkable foresight (or good luck) that the first steps to organize this summer school were already taken before this discovery. It speaks for the dynamics of th field how dramatically it can change course when new insight is obtained. The contributions in this volume provide a detailed coverage of the experimental techniques for the creation and study of Fermi quantum gases, as well as the theoretical foundationfor understanding the properties of these novel systems.