Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1993-06-09
Mod.Phys.Lett.A8:2497-2502,1993
Physics
High Energy Physics
High Energy Physics - Theory
8 pages
Scientific paper
10.1142/S0217732393002828
We consider open strings in an external constant magnetic field $H$. For an (infinite) sequence of critical values of $H$ an increasing number of (highest spin component) states lying on the first Regge trajectory becomes tachyonic. In the limit of infinite $H$ all these states are tachyons (with a common tachyonic mass) both in the case of the bosonic string and for the Neveu-Schwarz sector of the fermionic string. This result generalizes to extended object the same instability which occurs in ordinary non-Abelian gauge theories. The Ramond states have always positive square masses as is the case for ordinary QED. The weak field limit of the mass spectrum is the same as for a field theory with gyromagnetic ratio $g_S=2$ for all charged spin states. This behavior suggests a phase transition of the string as it has been argued for the ordinary electroweak theory.
Ferrara Sergio
Porrati Massimo
No associations
LandOfFree
String Phase Transitions in a Strong Magnetic Field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with String Phase Transitions in a Strong Magnetic Field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and String Phase Transitions in a Strong Magnetic Field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-388250