The Stability of Noncommutative Scalar Solitons

Details The Stability of Noncommutative Scalar Solitons The Stability of Noncommutative Scalar Solitons

2001-03-26

arxiv.org/abs/hep-th/0103217v3

JHEP 0109:004,2001

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, corrected typos

Scientific paper

10.1088/1126-6708/2001/09/004

We determine the stability conditions for a radially symmetric noncommutative scalar soliton at finite noncommutivity parameter $\theta$. We find an intriguing relationship between the stability and existence conditions for all level-1 solutions, in that they all have nearly-vanishing stability eigenvalues at critical $\theta m^2$. The stability or non-stability of the system may then be determined entirely by the $\phi^3$ coefficient in the potential. For higher-level solutions we find an ambiguity in extrapolating solutions to finite $\theta$ which prevents us from making any general statements. For these stability may be determined by comparing the fluctuation eigenvalues to critical values which we calculate.

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