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The ground state of chargeless fermions with finite magnetic moment

DSpace at IIT Bombay

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Title The ground state of chargeless fermions with finite magnetic moment
 
Creator MAHANTI, SD
JHA, SS
 
Description We consider the ground state of a system of chargeless fermions, such as neutrinos, of mass m and magnetic moment p interacting through long-range magnetic dipole interaction, within the framework of a Hartree-Fock variational approach. At high densities the uniform paramagnetic state becomes unstable towards a ferromagnetic state with quadrupolar deformation of the Fermi surface. The exchange energy which is attractive dominates the repulsive kinetic energy. If we let the density be a variable, then above a certain density the system will collapse to an infinite density state unless another short-range interaction stops the collapse. In the case of large deformations, the possibility of a purely dipolar deformation exists.
 
Publisher IOP PUBLISHING LTD
 
Date 2011-08-04T01:35:14Z
2011-12-26T12:54:29Z
2011-12-27T05:42:25Z
2011-08-04T01:35:14Z
2011-12-26T12:54:29Z
2011-12-27T05:42:25Z
2006
 
Type Article
 
Identifier JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 39(6), 1239-1249
0305-4470
http://dx.doi.org/10.1088/0305-4470/39/6/002
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9203
http://hdl.handle.net/10054/9203
 
Language en