The physics of liquid para-hydrogen

Thomas Lindenau, Manfred L. Ristig, Klaus A. Gernoth, Javier Dawidowski, Francisco J. Bermejo

    Research output: Contribution to journalArticlepeer-review


    Macroscopic systems of hydrogen molecules exhibit a rich thermodynamic phase behavior. Due to the simplicity of the molecular constituents a detailed exploration of the thermal properties of these boson systems at low temperatures is of fundamental interest. Here,we report theoretical and experimental results on various spatial correlation functions and corresponding distributions in momentum space of liquid parahydrogen close to the triple point. They characterize the structure of the correlated liquid and provide information on quantum effects present in this Bose fluid. Numerical calculations employ Correlated Density-Matrix (CDM) theory and Path-Integral Monte-Carlo(PIMC) simulations. A comparison of these theoretical results demonstrates the accuracy of CDM theory. This algorithm therefore permits a fast and efficient quantitative analysis of the normal phase of liquid para-hydrogen. We compare and discuss the theoretical results with available experimental data. © World Scientific Publishing Company.
    Original languageEnglish
    Pages (from-to)5035-5046
    Number of pages11
    JournalInternational Journal of Modern Physics B
    Issue number30-31
    Publication statusPublished - 20 Dec 2006


    • Correlated density matrix theory
    • Liquid hydrogen
    • Monte Carlo


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