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VORTEX HYDRODYNAMICS

A.F. Borghesani

in Ions and electrons in liquid helium

Published in print:
2007
Published Online:
January 2008
ISBN:
9780199213603
eISBN:
9780191707421
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213603.003.0007
Subject:
Physics, Condensed Matter Physics / Materials

This chapter deals with the discovery that ions interact with hydrodynamic structures of the superfluid in a way that can be explained only by assuming that the flow patterns in the superfluid are ... More


Ions and electrons in liquid helium

Armando Francesco Borghesani

Published in print:
2007
Published Online:
January 2008
ISBN:
9780199213603
eISBN:
9780191707421
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213603.001.0001
Subject:
Physics, Condensed Matter Physics / Materials

In liquid helium, an electron is surrounded by a cavity called an electron bubble of 20 Ångstroms in diameter. A positive helium ion is solvated by an electrostriction induced solid helium-ice shell ... More


MOTION OF CHARGED QUANTIZED VORTEX RINGS IN SUPERFLUID HE II

A.F. Borghesani

in Ions and electrons in liquid helium

Published in print:
2007
Published Online:
January 2008
ISBN:
9780199213603
eISBN:
9780191707421
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213603.003.0008
Subject:
Physics, Condensed Matter Physics / Materials

This chapter describes the motion of charged quantized vortex rings in superfluid He II. The experimental results are presented and discussed. The striking behavior of the energy-velocity ... More


BARE-ION TRANSPORT AT HIGH FIELDS

A.F. Borghesani

in Ions and electrons in liquid helium

Published in print:
2007
Published Online:
January 2008
ISBN:
9780199213603
eISBN:
9780191707421
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213603.003.0010
Subject:
Physics, Condensed Matter Physics / Materials

This chapter describes the phenomena observed when the drift field is large enough for ions to escape capture by vortex rings. The electric field dependence of the ion drift velocity at high fields ... More


ION TRANSPORT AT INTERMEDIATE FIELDS AT LOW PRESSURE

A.F. Borghesani

in Ions and electrons in liquid helium

Published in print:
2007
Published Online:
January 2008
ISBN:
9780199213603
eISBN:
9780191707421
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213603.003.0006
Subject:
Physics, Condensed Matter Physics / Materials

At higher electric fields, the drifting ions are not in thermal equilibrium with the gas of the elementary excitations of the superfluid, and the mobility depends on the field. This chapter presents ... More


SUPERFLUIDITY AND CHARGE CARRIERS

A.F. Borghesani

in Ions and electrons in liquid helium

Published in print:
2007
Published Online:
January 2008
ISBN:
9780199213603
eISBN:
9780191707421
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213603.003.0001
Subject:
Physics, Condensed Matter Physics / Materials

This chapter briefly summarizes the main features of superfluid helium. The Landau velocity criterion for the onset of superfluidity is discussed, and the spectrum of the elementary excitations is ... More


Nonuniform Bose Gases at Zero Temperature

Lev Pitaevskii and Sandro Stringari

in Bose-Einstein Condensation and Superfluidity

Published in print:
2016
Published Online:
March 2016
ISBN:
9780198758884
eISBN:
9780191818721
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198758884.003.0005
Subject:
Physics, Condensed Matter Physics / Materials

This chapter develops the theory of weakly interacting nonuniform Bose gases at zero temperature. Interaction effects are accounted for by a single coupling constant fixed by the value of the s-wave ... More


Turbulent Flows

David Jon Furbish

in Fluid Physics in Geology: An Introduction to Fluid Motions on Earth’s Surface and Within its Crust

Published in print:
1997
Published Online:
November 2020
ISBN:
9780195077018
eISBN:
9780197560358
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195077018.003.0018
Subject:
Earth Sciences and Geography, Geophysics: Earth Sciences

Many geological flows involve turbulence, wherein the velocity field involves complex, fluctuating motions superimposed on a mean motion. Flows in natural river channels are virtually always ... More


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