Variational density-matrix theory of liquid He4 at nonzero temperatures

Keyphrases

• Variational 100%
• Density Matrix 100%
• Density Matrix Theory 100%
• Nonzero Temperature 100%
• Theory of Liquids 100%
• Structure Function 50%
• Phenomenological Study 50%
• Long Wavelength 50%
• Elementary Excitations 50%
• Matrix Elements 50%
• Two-body 50%
• Variational Theory 50%
• Nonnegative Matrix 50%
• Minimum Principle 50%
• Helmholtz Free Energy 50%
• Euler-Lagrange Equation 50%
• Body Function 50%
• Coordinate Representation 50%
• Exponentiated 50%
• Roton Minimum 50%
• Hypernetted-chain Approximation 50%
• Boson Systems 50%
• Separability Condition 50%
• Equilibrium Density 50%
• Coordinate Spaces 50%

Mathematics

• Nonzero Temperature 100%
• Density Matrix 100%
• Space Coordinate 33%
• Experimental Data 33%
• Helmholtz Free Energy 33%
• Matrix Element 33%
• Structure Function 33%
• Coordinate Representation 33%
• Hypernetted Chain Approximation 33%
• Euler-Lagrange Equation 33%
• Elementary Excitation 33%

Physics

• Elementary Excitation 100%
• Roton 100%
• Euler-Lagrange Equation 100%
• Helmholtz Free Energy 100%