Excitations in Liquid Helium at Negative Pressures

  • Humphrey J. Maris
Part of the NATO ASI Series book series (NSSB, volume 257)


In this article we will discuss the behavior of liquid helium at negative pressures, with particular emphasis on the dispersion curve for phonons and rotons. We will show that even though the amount of experimental work so far performed on helium in a state of tension is quite small, it is possible to deduce the main features of the variation of the dispersion curve with pressure in surprising detail. Furthermore, the results of the analysis provide a new perspective on the behavior of helium for positive pressure.


Bulk Modulus Negative Pressure Dispersion Curve Sound Velocity Liquid Helium 
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Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • Humphrey J. Maris
    • 1
  1. 1.Department of PhysicsBrown UniversityProvidenceUSA

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