Article ID Journal Published Year Pages File Type
8194935 Physics Letters B 2009 4 Pages PDF
Abstract
It was recently conjectured by Shabad and Usov that there exists in QED a maximum magnetic field of 1042G, above which the magnetized vacuum becomes unstable. Using a nonperturbative analysis that consistently incorporates the effective electron mass and the screening effect in a strong magnetic field, we show that the conjectured phenomenon of positronium collapse never takes place. Thus, there does not exist a maximum magnetic field in QED and the magnetized vacuum is stable for all values of the magnetic field.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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