Charged scalar fields in an external magnetic field: Renormalisation and universal diamagnetism

Jana, Debnarayan

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3203

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DC Field	Value	Language
dc.contributor.author	Jana, Debnarayan	-
dc.date.accessioned	2007-06-30T10:56:01Z	-
dc.date.available	2007-06-30T10:56:01Z	-
dc.date.issued	1996-08	-
dc.identifier.citation	Nuclear Physics B, 1996, Vol.473, p659-684	en
dc.identifier.issn	0550-3213	-
dc.identifier.uri	http://hdl.handle.net/2289/3203	-
dc.description	Restricted Access.	en
dc.description.abstract	The physical and mathematical mechanism behind diamagnetism of N (finite) spinless bosons (relativistic or non-relativistic) is well known. The mathematical signature of this diamagnetism follows from Kato's inequality while its physical way of understanding goes back to Van Leeuwen. One can guess that it might be true in the field theoretic case also. While the work on systems with a finite number of degrees of freedom suggests that the same result is true in a field theory, it does not by any means prove it. In the field theoretic context one has to develop a suitable regularisation scheme to renormalise the free energy. We show that charged scalar fields in (2+1) and (3+1) dimensions are always diamagnetic, even in the presence of interactions and at finite temperatures. This generalises earlier work on the diamagnetism of charged spinless bosons to the case of infinite degrees of freedom. We also discuss possible applications of the theory.	en
dc.format.extent	1194807 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	Elsevier B.V.	en
dc.relation.uri	http://dx.doi.org/10.1016/0550-3213(96)00248-9	en
dc.rights	1996 Elsevier B.V.	en
dc.title	Charged scalar fields in an external magnetic field: Renormalisation and universal diamagnetism	en
dc.type	Article	en
Appears in Collections:	Research Papers (TP)

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