Ioannidou, T. and Papadopoulos, G. and Sutcliffe, P.M. (1999) Non-BPS Dirac-Born-Infeld solitons. Journal of High Energy Physics (9). p. 14. ISSN 1029-8479.
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We show that CPn sigma model solitons solve the field equations of a Dirac-Born-Infeld (DBI) action and, furthermore, we prove that the non-BPS soliton/anti-soliton solutions of the sigma model also solve the DBI equations. Using the moduli space approximation we compare the dynamics of the BPS sigma model solitons with that of the associated DBI solitons. We find that for the CP1 case the metric on the moduli space of sigma model solitons is identical to that of the moduli space of DBI solitons, but for CPn with n >1 we show that the two metrics are not equal. We also consider the possibility of similar non-BPS solitons in other DBI theories.
|Uncontrolled keywords:||solitons monopoles and instantons; D-branes|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Mathematics Statistics and Actuarial Science|
|Depositing User:||I.T. Ekpo|
|Date Deposited:||19 Apr 2009 20:51|
|Last Modified:||19 Apr 2009 20:51|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/16861 (The current URI for this page, for reference purposes)|
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