====== Superfluid 4He properties ======

===== Books =====
  * J. Wilks, Properties of Liquid and Solid Helium (Monographs on Physics), Oxford University Press (1967)  

  * H. R. Glyde, Excitations in Liquid and Solid Helium, Oxford Series on Neutron Scattering in Condensed Matter (Clarendon, Oxford, 1994).

===== Recent papers containing detailed references =====

=== Thermodynamic properties ===

  * Dispersion relation of Landau elementary excitations and thermodynamic properties of superfluid 4He. H. Godfrin, K. Beauvois, A. Sultan, E. Krotscheck, J. Dawidowski, B. Fak, J. Ollivier, Phys. Rev. B 103, 104516 (2021). [https://doi.org/10.1103/PhysRevB.103.104516]] arXiv:[[https://arxiv.org/abs/2012.09067]]. See Supplemental Material at [[http://link.aps.org/supplemental/10.1103/PhysRevB.103.104516]] for detailed data tables.

  * The Observed Properties of Liquid Helium at the Saturated Vapor Pressure. R. J. Donnelly and C. F. Barenghi, Journal of Physical and Chemical Reference Data 27, 1217 (1998) [[https://doi.org/10.1063/1.556028]] 

  * The calculated thermodynamic properties of superfluid helium‐4, J. S. Brooks and R. J. Donnelly, Journal of Physical and Chemical Reference Data 6, 51 (1977) [[https://doi.org/10.1063/1.555549]] 

  * Molar volume of pure liquid 4He: dependence on temperature (50–1000 mK) and pressure (0–1.57 MPa), E. Tanaka, K. Hatakeyama, S. Noma, and T. Satoh, Cryogenics 40, 365 (2000). [[https://doi.org/10.1016/S0011-2275(00)00052-7]].

=== Dynamics (phonon-roton dispersion, excitations, multi-excitations) ===

  * Dispersion relation of Landau elementary excitations and thermodynamic properties of superfluid 4He. H. Godfrin, K. Beauvois, A. Sultan, E. Krotscheck, J. Dawidowski, B. Fak, J. Ollivier, Phys. Rev. B 103, 104516 (2021). [[https://doi.org/10.1103/PhysRevB.103.104516]] arXiv:[[https://arxiv.org/abs/2012.09067]]. See SupplementalMaterial at [[http://link.aps.org/supplemental/10.1103/PhysRevB.103.104516]] for detailed data tables.

  * Microscopic dynamics of superfluid He4: A comprehensive study by inelastic neutron scattering. K. Beauvois, J. Dawidowski, B. Fåk, H. Godfrin, E. Krotscheck, J. Ollivier, A. Sultan, Phys. Rev. B 97, 184520 (2018). [[https://doi.org/10.1103/PhysRevB.97.184520]] arXiv:[[https://arxiv.org/abs/1802.08120]]

  * H. R. Glyde, Rep. Prog. Phys. 81, 014501 (2017) [[https://doi.org/10.1088/1361-6633/aa7f90]]

===== Calculators (on-line data sources) =====
  * 4He calculator by Ben Gooding, George Stagg, Carlo F. Barenghi, Yuri Sergeev, August 2018  [[http://www.mas.ncl.ac.uk/helium/]]

===== Data Tables =====

  * Dispersion relation P=0 [[https://arxiv.org/src/2012.09067v1/anc/DispersionP0allRange.txt|Link to Table]]

  * Dispersion relation different pressures [[https://arxiv.org/src/2012.09067v1/anc/DispersionAllPressures.txt|Link to Table]]

  * Specific heat and Entropy  [[https://arxiv.org/src/2012.09067v1/anc/Cv-and-Entropy.txt|Link to Table]]

  * Excitations number density  [[https://arxiv.org/src/2012.09067v1/anc/ExcitationsNumberDensity.txt|Link to Table]]

  * Normal Fluid density [[wiki:Normal density|Normal density Table]]