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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


IONS AND ELEMENTARY EXCITATIONS

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/9780199213603.003.0004
Subject:
Physics, Condensed Matter Physics / Materials

This chapter introduces the concept of drift mobility and its relationship with the elementary excitations of the superfluid.


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


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


MOTION OF IONS ALONG LINEAR VORTICES

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/9780199213603.003.0012
Subject:
Physics, Condensed Matter Physics / Materials

Ions and electron bubbles are captured by the vortex lines which occur in a rotating superfluid sample. Once captured, however, the charges can move along the quantized vortex lines. On one hand, ... More


Vacuum Under Rotation and Spinning Strings

VOLOVIK GRIGORY E.

in The Universe in a Helium Droplet

Published in print:
2009
Published Online:
January 2010
ISBN:
9780199564842
eISBN:
9780191709906
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199564842.003.0031
Subject:
Physics, Condensed Matter Physics / Materials, Particle Physics / Astrophysics / Cosmology

This chapter deals with the properties of the quantum vacuum in superfluids in the presence of the analog of a gravimagnetic field. Such an effective field arises either in the presence of ... More


Quantum Mixtures and Spinor Gases

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/9780198758884.003.0021
Subject:
Physics, Condensed Matter Physics / Materials

This chapter discusses the behaviour of quantum mixtures, including spinor gases. It considers mixtures of different atomic species and discuss the conditions for miscibility and the role of the ... More


Superfluid 4He

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/9780198758884.003.0008
Subject:
Physics, Condensed Matter Physics / Materials

This chapter summarizes some key features exhibited by superfluid 4He. These include the structure of the elementary excitations exhibiting the typical phonon–maxon–roton dispersion, the pair ... More


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