TY - JOUR
T1 - On the mode-coupling treatment of collective density fluctuations for quantum liquids
T2 - Para-hydrogen and normal liquid helium
AU - Kletenik-Edelman, Orly
AU - Reichman, David R.
AU - Rabani, Eran
N1 - Funding Information:
We would like to thank the US-Israel Binational Science Foundation for financial support. E.R. thanks the Miller Institute for Basic Research in Science at UC Berkeley for partial financial support via a Visiting Miller Professorship.
PY - 2011/1/28
Y1 - 2011/1/28
N2 - A novel quantum mode coupling theory combined with a kinetic approach is developed for the description of collective density fluctuations in quantum liquids characterized by Boltzmann statistics. Three mode-coupling approximations are presented and applied to study the dynamic response of para-hydrogen near the triple point and normal liquid helium above the -transition. The theory is compared with experimental results and to the exact imaginary time data generated by path integral Monte Carlo simulations. While for liquid para-hydrogen the combination of kinetic and quantum mode-coupling theory provides semi-quantitative results for both short and long time dynamics, it fails for normal liquid helium. A discussion of this failure based on the ideal gas limit is presented.
AB - A novel quantum mode coupling theory combined with a kinetic approach is developed for the description of collective density fluctuations in quantum liquids characterized by Boltzmann statistics. Three mode-coupling approximations are presented and applied to study the dynamic response of para-hydrogen near the triple point and normal liquid helium above the -transition. The theory is compared with experimental results and to the exact imaginary time data generated by path integral Monte Carlo simulations. While for liquid para-hydrogen the combination of kinetic and quantum mode-coupling theory provides semi-quantitative results for both short and long time dynamics, it fails for normal liquid helium. A discussion of this failure based on the ideal gas limit is presented.
UR - http://www.scopus.com/inward/record.url?scp=79551598529&partnerID=8YFLogxK
U2 - 10.1063/1.3521478
DO - 10.1063/1.3521478
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AN - SCOPUS:79551598529
SN - 0021-9606
VL - 134
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
IS - 4
M1 - 044528
ER -