An Investigation of Vortex Dynamics in 2-dimensional Superfluid Films of Helium-4

An Investigation of Vortex Dynamics in 2-dimensional Superfluid Films of Helium-4 PDF Author: Mokyang Kim
Publisher:
ISBN:
Category : Liquid helium
Languages : en
Pages : 368

Get Book Here

Book Description

An Investigation of Vortex Dynamics in 2-dimensional Superfluid Films of Helium-4

An Investigation of Vortex Dynamics in 2-dimensional Superfluid Films of Helium-4 PDF Author: Mokyang Kim
Publisher:
ISBN:
Category : Liquid helium
Languages : en
Pages : 368

Get Book Here

Book Description


Quantized Vortex Dynamics and Superfluid Turbulence

Quantized Vortex Dynamics and Superfluid Turbulence PDF Author: C.F. Barenghi
Publisher: Springer
ISBN: 3540455426
Category : Technology & Engineering
Languages : en
Pages : 459

Get Book Here

Book Description
This book springs from the programme Quantized Vortex Dynamics and Sup- ?uid Turbulence held at the Isaac Newton Institute for Mathematical Sciences (University of Cambridge) in August 2000. What motivated the programme was the recognition that two recent developments have moved the study of qu- tized vorticity, traditionally carried out within the low-temperature physics and condensed-matter physics communities, into a new era. The ?rst development is the increasing contact with classical ?uid dynamics and its ideas and methods. For example, some current experiments with - lium II now deal with very classical issues, such as the measurement of velocity spectra and turbulence decay rates. The evidence from these experiments and many others is that super?uid turbulence and classical turbulence share many features. The challenge is now to explain these similarities and explore the time scales and length scales over which they hold true. The observed classical aspects have also attracted attention to the role played by the ?ow of the normal ?uid, which was somewhat neglected in the past because of the lack of direct ?ow visualization. Increased computing power is also making it possible to study the coupled motion of super?uid vortices and normal ?uids. Another contact with classical physics arises through the interest in the study of super?uid vortex - connections. Reconnections have been studied for some time in the contexts of classical ?uid dynamics and magneto-hydrodynamics (MHD), and it is useful to learn from the experience acquired in other ?elds.

Probing Two-Dimensional Quantum Fluids with Cavity Optomechanics

Probing Two-Dimensional Quantum Fluids with Cavity Optomechanics PDF Author: Yauhen Sachkou
Publisher: Springer Nature
ISBN: 3030527662
Category : Science
Languages : en
Pages : 161

Get Book Here

Book Description
Superfluid helium is a quantum liquid that exhibits a range of counter-intuitive phenomena such as frictionless flow. Quantized vortices are a particularly important feature of superfluid helium, and all superfluids, characterized by a circulation that can only take prescribed integer values. However, the strong interactions between atoms in superfluid helium prohibit quantitative theory of vortex behaviour. Experiments have similarly not been able to observe coherent vortex dynamics. This thesis resolves this challenge, bringing microphotonic techniques to bear on two-dimensional superfluid helium, observing coherent vortex dynamics for the first time, and achieving this on a silicon chip. This represents a major scientific contribution, as it opens the door not only to providing a better understanding of this esoteric quantum state of matter, but also to building new quantum technologies based upon it, and to understanding the dynamics of astrophysical superfluids such as those thought to exist in the core of neutron stars.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704

Get Book Here

Book Description


Quantized Vortices in Helium II

Quantized Vortices in Helium II PDF Author: Russell J. Donnelly
Publisher: Cambridge University Press
ISBN: 9780521324007
Category : Mathematics
Languages : en
Pages : 368

Get Book Here

Book Description
This book discusses the properties of quantized vortex lines in superfluid helium-4 in the light of research on vortices in modern fluid mechanics, and gives the first comprehensive treatment of the problem. The author's comprehensive approach will make this book invaluable for students taking advanced undergraduate or graduate courses, and for all those involved in research on classical and quantum vortices.

Quantized Vortex Dynamics and Superfluid Turbulence

Quantized Vortex Dynamics and Superfluid Turbulence PDF Author: C.F. Barenghi
Publisher: Springer
ISBN: 9783540422266
Category : Technology & Engineering
Languages : en
Pages : 458

Get Book Here

Book Description
This book springs from the programme Quantized Vortex Dynamics and Sup- ?uid Turbulence held at the Isaac Newton Institute for Mathematical Sciences (University of Cambridge) in August 2000. What motivated the programme was the recognition that two recent developments have moved the study of qu- tized vorticity, traditionally carried out within the low-temperature physics and condensed-matter physics communities, into a new era. The ?rst development is the increasing contact with classical ?uid dynamics and its ideas and methods. For example, some current experiments with - lium II now deal with very classical issues, such as the measurement of velocity spectra and turbulence decay rates. The evidence from these experiments and many others is that super?uid turbulence and classical turbulence share many features. The challenge is now to explain these similarities and explore the time scales and length scales over which they hold true. The observed classical aspects have also attracted attention to the role played by the ?ow of the normal ?uid, which was somewhat neglected in the past because of the lack of direct ?ow visualization. Increased computing power is also making it possible to study the coupled motion of super?uid vortices and normal ?uids. Another contact with classical physics arises through the interest in the study of super?uid vortex - connections. Reconnections have been studied for some time in the contexts of classical ?uid dynamics and magneto-hydrodynamics (MHD), and it is useful to learn from the experience acquired in other ?elds.

Dynamics of Quantised Vortices in Superfluids

Dynamics of Quantised Vortices in Superfluids PDF Author: Edouard B. Sonin
Publisher: Cambridge University Press
ISBN: 1316453502
Category : Science
Languages : en
Pages : 405

Get Book Here

Book Description
A comprehensive overview of the basic principles of vortex dynamics in superfluids, this book addresses the problems of vortex dynamics in all three superfluids available in laboratories (4He, 3He, and BEC of cold atoms) alongside discussions of the elasticity of vortices, forces on vortices, and vortex mass. Beginning with a summary of classical hydrodynamics, the book guides the reader through examinations of vortex dynamics from large scales to the microscopic scale. Topics such as vortex arrays in rotating superfluids, bound states in vortex cores and interaction of vortices with quasiparticles are discussed. The final chapter of the book considers implications of vortex dynamics to superfluid turbulence using simple scaling and symmetry arguments. Written from a unified point of view that avoids complicated mathematical approaches, this text is ideal for students and researchers working with vortex dynamics in superfluids, superconductors, magnetically ordered materials, neutron stars and cosmological models.

ERDA Energy Research Abstracts

ERDA Energy Research Abstracts PDF Author: United States. Energy Research and Development Administration
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 818

Get Book Here

Book Description


Nuclear Science Abstracts

Nuclear Science Abstracts PDF Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 658

Get Book Here

Book Description


Dissertation Abstracts International

Dissertation Abstracts International PDF Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 842

Get Book Here

Book Description