Disscussion on Bulk 4He Dynamics

  • R. J. Donnelly
  • S. Stringari
Part of the NATO ASI Series book series (NSSB, volume 257)


Glyde to Campbell: Many properties of liquid 4He including the dispersion curve for the elementary excitations you describe, can be calculated with impressive precision using the method to Correlated Basis Functions (CBF). Can this method be extended to finite temperatures near Tλ? How would you distinguish clearly between a description of superfluid and normal 4He in the CBF method? Would you expect the dispersion curve to be substantially different in normal and superfluid 4He?


Dispersion Curve Finite Temperature Condensate Fraction Exact Ground State Accidental Feature 
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Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • R. J. Donnelly
  • S. Stringari

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