@article{45b6a9ad7ffd42308e862f30320f180f,
title = "Variational density matrix approach to the temperature-dependent elementary excitation spectrum of two-dimensional liquid 4 He",
author = "Chung-In Um and Jae-Rok Kahng and Kyu-Hwang Yeon and George, \{Thomas F.\}",
note = "Using the variational density matrix method, we obtain a temperature-dependent elementary excitation spectrum for two-dimensional liquid4He. For more precise results, we use a Jastrow-Feenberg-type trial wave function and include the contribution of elementary diagrams within the hypernetted chain approximation.",
year = "1996",
month = feb,
day = "1",
doi = "10.1007/BF00754664",
language = "American English",
volume = "102",
journal = "Journal of Low Temperature Physics",
}