Density correlation function in superfluid helium near T λ

摘要: The previously calculated hydrodynamic form of the density correlation function liquid helium is written out explicitly forT nearT λ. This function, which proportional to intensity light scattered from fluid, has a finite value at ω=0, grows asT→T λ below. In evaluating precise this contribution in terms transport coefficients, it important keep order (C p /C v )−1.