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  1. Home
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  3. Excitations in a Bose-condensed Liquid
  • Cited by 279
Publisher:
Cambridge University Press
Online publication date:
September 2009
Print publication year:
1993
Online ISBN:
9780511524257
DOI:
https://doi.org/10.1017/CBO9780511524257
Subjects:
Physics and Astronomy, Condensed Matter Physics, Nanoscience and Mesoscopic Physics
Series:
Cambridge Studies in Low Temperature Physics (4)
Information

Book description

This volume gives an up-to-date, systematic account of the microscopic theory of Bose-condensed fluids developed since the late 1950s. In contrast to the usual phenomenological discussions of superfluid 4He, the present treatment is built on the pivotal role of the Bose broken symmetry and a Bose condensate. The many-body formalism is developed, with emphasis on the one- and two-particle Green's functions and their relation to the density response function. These are all coupled together by the Bose broken symmetry, which provides the basis for understanding the elementary excitations and response functions in the hydrodynamic and collisionless regions. It also explains the difference between excitations in the superfluid and normal phases. Chapter 4 gives the first critical assessment of the experimental evidence for a Bose condensate in liquid 4He, based on high-momentum neutron scattering data.

Reviews

‘This book was a godsend to me! … a subject to which the author has made very substantial contributions … I strongly recommend this book and am very glad to have this book in my library. I am sure that it will be very greatly valued by beginners in the field.’

Source: Contemporary Physics

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