67. Quantum fluids and solids; liquid and solid helium (see also 05.30 Quantum statistical mechanics) ( 0 Dok.)

• 67.20.+k Quantum effects on the structure and dynamics of nondegenerate fluids (e.g., normal phase liquid [supon]4[supoff]He) ( 0 Dok. )

• 67.40.-w Boson degeneracy and superfluidity of [supon]4[supoff]He ( 0 Dok. )

• 67.55.-s Normal phase of liquid [supon]3[supoff]He ( 0 Dok. )

• 67.57.-z Superfluid phase of liquid [supon]3[supoff]He ( 0 Dok. )

• 67.60.-g Mixed systems; liquid [supon]3[supoff]He, [supon]4[supoff]He mixtures ( 0 Dok. )

• 67.65.+z Spin-polarized hydrogen and helium ( 0 Dok. )

• 67.70.+n Films (including physical adsorption) ( 0 Dok. )

• 67.80.-s Solid helium and related quantum crystals ( 0 Dok. )

• 67.90.+z Other topics in quantum fluids and solids; liquid and solid helium (restricted to new topics in section 67) ( 0 Dok. )