Open AccessTHEORY OF TWO-DIMENSIONAL FERMI LIQUIDS (Ⅱ)——LANDAU PARAMETERS OF 2-D LIQUID 3He
Author(s) -
Shi-Min Cui,
Cai Jian-Hua
Publication year - 1990
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.39.572
Subject(s) - cluster expansion , fermi liquid theory , physics , landau theory , ground state , partition function (quantum field theory) , basis (linear algebra) , function (biology) , statistical physics , fermi gamma ray space telescope , landau quantization , cluster (spacecraft) , condensed matter physics , quantum mechanics , superconductivity , computer science , mathematics , evolutionary biology , magnetic field , biology , geometry , phase transition , programming language
2-D liquid 3He is studied using the method of correlated basis functions (CBF). The cluster expansion technique is extended to treat finite temperature systems based on variational principle for the partition function. Adopting a Lennard-Jones potential, the ground state energy, quasi-particle energies and the Landau parameters are evaluated to the second order.