Noncommutative Q-balls
Youngjai Kiem, Chanju Kim, Yoonbai Kim
TL;DR
This paper explores noncommutative scalar field theories with a global U(1) symmetry, discovering stable Q-ball solutions, including excited states, in the large noncommutativity limit, with analysis of their classical and quantum stability.
Contribution
It introduces Q-ball solutions in noncommutative scalar fields and identifies conditions for their stability and existence of excited states.
Findings
Q-ball solutions are stable both classically and quantum mechanically.
Excited Q-ball states exist in certain scalar potentials.
Stability is analyzed in the large noncommutativity limit.
Abstract
We obtain Q-ball solutions in noncommutative scalar field theory with a global U(1) invariance. The Q-ball solutions are shown to be classically and quantum mechanically stable. We also find that "excited Q-ball" states exist for some class of scalar potentials, which are classically stable in the large noncommutativity limit.
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