Open AccessThermal stability conditions of a weakly interacting Fermi gas in a weak magnetic field
Author(s) -
Men Fu-Dian,
Hui Liu,
Zhu Hou-Yu
Publication year - 2008
Publication title -
progress in natural science materials international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.864
H-Index - 63
eISSN - 1745-5391
pISSN - 1002-0071
DOI - 10.1016/j.pnsc.2008.04.013
Subject(s) - magnetic field , pseudopotential , condensed matter physics , physics , stability (learning theory) , limit (mathematics) , field (mathematics) , quantum mechanics , mathematics , mathematical analysis , pure mathematics , computer science , machine learning
On the basis of the results derived from pseudopotential method and ensemble theory,thermal stability of a weakly interacting Fermi gas in a weak magnetic field is studied by using analytical method of thermodynamics.The exact analytical expressions of stability conditions at different temperatures are given,and the effects of interactions as well as magnetic field on the stability of the system are discussed.It is shown that there is an upperlimit magnetic field for the stability of the system at low temperatures,and there is an attractive dividing value at high temperatures.If attractive interaction is lower than the critical value,the stability of the system has no request for magnetic field,but if attractive interaction is higher than the dividing value,a lower-limit magnetic field exists for the stability of the system.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom